SmartStar® MiniTower
TM
Instruction Manual
Table of Content
Table of Content ............................................................................................................................. 2
1. MiniTower
1.1. MiniTower
1.2. MiniTowerTM Components.................................................................................................. 7
2. MiniTowerTM Assembly ............................................................................................................. 8
2.1. MiniTower Assembly ..........................................................................................................9
2.2. OTA Mounting and Balancing........................................................................................... 11
2.3. Operate a MiniTower on Batteries..................................................................................... 12
3. GOTONOVATM 8401 Hand Controller.................................................................................... 13
3.1. Key Description................................................................................................................. 13
3.2. The LCD Screen ................................................................................................................ 14
3.3. Connection to a Computer................................................................................................. 14
4. Getting Started.......................................................................................................................... 16
4.1. Level and Align the Mount................................................................................................ 16
4.1.1. Level the Mount.......................................................................................................... 16
4.1.2. Initial Positions ........................................................................................................... 16
4.2. Setting Up the Mount......................................................................................................... 17
4.2.1. Set Up Time Zone....................................................................................................... 17
4.2.2. Set Up Daylight Saving Time..................................................................................... 18
4.2.3. Set Mount Type........................................................................................................... 19
4.2.4. Set Anti-backlash........................................................................................................ 19
4.2.5. Go to the Moon........................................................................................................... 20
4.2.6. Initial Star Alignment ................................................................................................. 20
4.3. Turn Off the Mount............................................................................................................ 21
5. Use the MiniTower................................................................................................................... 22
5.1. Manual Operation of a Telescope...................................................................................... 22
5.2. Slew to an Object............................................................................................................... 22
5.2.1. Planets, Sun, Moon..................................................................................................... 22
5.2.2. Deep sky objects......................................................................................................... 22
5.2.3. Comets ........................................................................................................................ 23
5.2.4. Asteroids..................................................................................................................... 23
5.2.5. Stars: ........................................................................................................................... 23
5.2.6. Constellations.............................................................................................................. 23
5.2.7. User Objects................................................................................................................ 23
5.2.8. Enter R.A. DEC .......................................................................................................... 23
5.3. Sync to Target.................................................................................................................... 23
5.4. Electric Focuser ................................................................................................................. 24
5.5. Set Up Controller............................................................................................................... 24
5.5.1. Set Up Local Time...................................................................................................... 24
5.5.2. Set Up Site .................................................................................................................. 24
5.5.3. Set N/S Hemisphere.................................................................................................... 24
5.5.4. Set Display Contrast ................................................................................................... 24
5.5.5. Set Eyepiece Light...................................................................................................... 24
5.5.6. Set Backlight............................................................................................................... 24
TM
Overview.............................................................................................................. 4
TM
Features......................................................................................................... 4
2
5.5.7. Set Anti-backlash........................................................................................................ 24
5.5.8. Set Key Beep............................................................................................................... 24
5.5.9. Set Mount Type........................................................................................................... 24
5.5.10. Reset All.................................................................................................................... 25
5.5.11. Update Firmware ...................................................................................................... 25
5.5.12. Set gear ratio............................................................................................................. 25
5.5.13. Set Language............................................................................................................. 25
5.6. Align .................................................................................................................................. 25
5.6.1. One Star Align ............................................................................................................ 25
5.6.2. Two Star Align............................................................................................................ 25
5.6.3. Three-Star Align ......................................................................................................... 26
5.6.4. Dis R.A axis error....................................................................................................... 26
5.6.5. Test Anti-backlash...................................................................................................... 26
5.6.6. Polaris Position ........................................................................................................... 26
5.7. PEC Option........................................................................................................................ 26
5.8. Set Up Tracking................................................................................................................. 26
5.9. User Objects....................................................................................................................... 26
5.10. Auto Guide....................................................................................................................... 26
5.11. Park Scope ....................................................................................................................... 27
5.12. To Park Position............................................................................................................... 27
6. Maintenance and Servicing....................................................................................................... 28
6.1. Maintenance....................................................................................................................... 28
6.2. Troubleshooting................................................................................................................. 28
6.3. iOptron Customer Service.................................................................................................. 29
Appendix A. Technical Specifications ......................................................................................... 30
Appendix B. GOTONOVATM 8401 HC MENU STRUCTURE.................................................. 31
Appendix C. GOTONOVATM Star List........................................................................................ 33
Appendix D. Set Up USB-PC Connection ................................................................................... 38
Appendix E. Firmware Upgrade................................................................................................... 45
Appendix F. Use a PC to Control an iOptron Mount ................................................................... 48
Appendix G. RS-232 Command Set............................................................................................. 49
IOPTRON TWO YEAR TELESCOPE, MOUNT, AND CONTROLLER WARRANTY........ 54
NEVER USE A TELESCOPE TO LOOK AT THE SUN!
Looking at or near the Sun will cause instant and irreversible damage to your eye.
Children should always have adult supervision while observing.
WARNING!
3
1. MiniTowerTM Overview
1.1. MiniTowerTM Features
MiniTowerTM is the perfect combination of capacity and portability.
¾ 25 lbs of Payload
Born out of the popular iOptron CubeTM, The MiniTowerTM is the ultimate observing
solution for people who are searching for a capable and portable GOTO telescope mount to
counter light pollution in their backyards and for travel convenience. With a standard payload of
25 lbs, a rock solid 1.5” stainless steel tripod, metal worm and gear and two dovetail adaptors,
The MiniTower
counter weight and a secondary dovetail holder are provided for balancing an OTA weights
more than 10 lbs, or for a secondary OTA.
TM
is capable of handling various optical tube assemblies (OTAs). A 10-lbs
Figure 1. MiniTower Mount and Tripod
4
¾ Extremely Portable
With all the standard components (excluding the tripod) fitted in an aluminum alloy metal
case, The MiniTower
TM
can easily travel in a car or taken as airline luggage. The system takes
about 10 minutes to assemble. This unlimited portability combined with the internal GPS gives
amateur astronomers real flexibility in selecting an observing site.
¾ Accurate GOTO and Tracking
Equipped with our SmartStar® GOTO technology, the MiniTowerTM is one of the most
powerful and accurate GOTO mounts available on the market. The standard 8401 hand
controller offers a superb navigation experience with an 8-line LCD backlit display, a 130,000object database, and a USB port for easy connection with ASCOM compliant PC planetarium
programs. With a typical GOTO accuracy of 1 arc minute and the SmartStar
tracking, The MiniTower
TM
will consistently bring the celestial object of your choice to the center
of the eyepiece and keep tracking for hours.
Figure 2. MiniTower in a aluminum case
5
®
precision auto-
¾ Additional Unique Features
Equipped with additional features such as automatic over-current protection, automatic
clutch protection for both axes, easy 3-point level adjustment, dual scope setup with two
dovetails and more-- The MiniTower
today.
TM
is one of the most user-friendly GOTO mounts available
Figure 3. MiniTower with dual scope setup
6
1.2. MiniTowerTM Components1
Figure 4. MiniTower Components
Shown in the picture:
1. Tripod Lock
2. Tripod Support
3. Tripod Knob
4. Tripod Rod
5. Level Adjustment Lock (not
available on later version)
6. Level Adjustment Knob
7. Tripod
8. Mount Base
9. Primary Dovetail Lock
Not shown in the picture:
8401 Hand Controller
Controller Cable
AC Adapter
12V DC Adapter with Car Lighter Plug
USB Cable
Counter Weight
Counter Weight Lock Pin
Counter Weight Lock
Hard Travel Case
10. Primary Dovetail Holder
11. Azimuth Clutch Lock
12. South Alignment Mark
13. Altitude Clutch Lock
14. Counter Balance Shaft Lock
15. Secondary Dovetail Holder Lock
16. Secondary Dovetail Holder
17. Secondary Dovetail Lock
18. Counter Balance Shaft
19. Bubble Level Indicator
1
The contents may vary slightly by generation.
7
2. MiniTowerTM Assembly
There are two shipping boxes. One box contains the hard case and mount components.
The other box contains the tripod and counterweight.
You may find that your tripod differs from the one shown here. Later models have star
shaped Level Adjustment Screws (#6) without Level Adjustment Lock (#5) (based on customer
feedback).
Figure 5. MiniTower packages
8
2.1. MiniTower Assembly
1. Setup tripod. Extend tripod legs to full extension. Then lock
legs using the lock knobs on sides.
Next expand the legs out to their maximum position.
Figure 6
2. Assemble the three prong washer and azimuth clutch lock
(#11) onto the mount base
Washer
#11
#4 Rod
#3 Knob
Figure 7
#1
#2
#6
#5
Figure 8
4. Secure the mount to the tripod by using the long tripod rod
(#4). Hand tighten the rod into the bottom of the mount by
turning the tripod knob (#3).
Next, slide tripod support (#2) onto bottom of rod (#4). Position
the three edges to fit against the three tripod legs. Then hand
tighten tripod lock knob (#1) to secure the tripod support in
place.
3. Adjust level adjustment screws
(#6) upward 5 mm. Carefully position
telescope mount onto the tripod by
aligning the three holes on the
bottom of the mount base (#8) to the
three level adjustment screws (#6)
on the top of the tripod (#7), hold the
mount with your hands.
Note: later models have the black
star knobs (right photo)
Figure 9
9
#10
5. Attach an OTA to the primary dovetail holder (#10) using the
primary dovetail lock (#9).
Tighten both the azimuth clutch lock (#11) and the altitude
clutch lock (#13)
#9
Figure 10
#18
6. Plug one end of supplied 6pin RJ-11 cable into either one of
the two HBX (Handbox) sockets on the mount; plug the other
end into the GOTONOVA 8401 hand controller. Plug in 12V
power cable.
Turn on power. Now you are ready to observe. Use the 4 Arrow
keys (▲▼◄►) to rotate the scope Up, Down, Left, and Right.
Use the number key to change the slew speed from the slowest
(1:1X) to the fastest (9:MAX).
The other HBX is reserved for accessories, such as electronic
focuser, laser pointer and autoguider adapter. DO NOT plug
non-iOptron accessories into the unit to avoid damaging
the mount or accessories.
Figure 11
#14
7. This step allows you to attach the counterweight or a second
scope. (note: if you have a light scope less than 10 lbs. on the
primary side, then attaching a counterweight is optional).
First, make sure the altitude clutch lock (#13) is tight. Screw the
counter balance shaft (#18) into the threaded hole inside the
#13
altitude clutch lock (#13) and tighten the counter balance shaft
lock (#14).
Figure 12
groove
Figure 13
If you are attaching a second scope, do not add the
counterweight. Instead, skip to Step 10 to add a second
scope.
8. Slide the counterweight onto the counterbalance shaft (#18).
Next, insert the brass pin into the hole on the counterweight.
10
#17
Lock
Figure 14
#16
9. Secure the counterweight by tightening the lock knob.
Counter weight is heavy. Please handle with care
to avoid injury!
This step is for attaching a second scope.
10. Attach Secondary Dovetail Holder (#16) by tightening the
holder lock (#15) onto the counterweight shaft (#18).
After sliding your scope into the dovetail holder—secure the
scope by tightening the secondary lock (#17)
#15
Figure 15
2.2. OTA Mounting and Balancing
The iOptron MiniTower™ can handle various OTAs. A dovetail plate is needed to mount
an OTA onto the MiniTower mount. The width of the MiniTower
Most telescopes come with a dovetail plate installed on the bottom of the telescope. If
the size of dovetail plate does not match un-screw the plate and install an appropriate dovetail
plate that matches the holder. 1.75” dovetail plates are available from iOptron at
www.iOptron.com (part number #8422) or visit an online or local camera store.
Some telescopes may not have screw holes on the bottom. In this case you may need
compatible mounting rings to attach the dovetail plate. The size of the mounting rings should
match the aperture of your OTA.
The counter weight (CW) is always helpful to balance the OTA in order to have smooth
and accurate GOTO and tracking. The heavier the OTA, the more necessary it is to use a CW.
For lightweight OTAs, i.e. 5-6 lbs, however, the CW may not be necessary.
TM
dovetail holder is 1.75”.
If you have a secondary OTA on the secondary dovetail holder, make sure you align it
with the primary OTA. This alignment is done easier during the daytime. Point the primary
telescope to a target at a remote building or flagpole and center the target in the eyepiece.
Loosen the secondary dovetail holder lock (#15). Rotate the secondary OTA around the counter
balance shaft (#18). Center the object in the eyepiece of the secondary OTA. If the secondary
OTA is tilted, it can be adjusted by two tilting adjustment screws as shown in Figure 16 (M6 x
12mm Allen set screws, not supplied).
11
M6 set screws
Figure 16. Secondary Dovetail and set screws
A combination of a light OTA and a CW can be used to balance a heavier primary OTA.
2.3. Operate a MiniTower on Batteries
To install batteries open the battery compartment door. Pull the battery holder out from
the mount carefully making sure not to pull the wires loose. Insert 8 AA batteries (not included)
according to the diagram on the holder. Replace the battery holder back to the battery
compartment and replace the cover. (See Figure 17)
Figure 17. Battery compartment for MiniTower™
The mount will draw a significant amount of current when performing GOTO and slew
operations. The battery operation time varies depending on the battery quality and how often
the mount slews or GOTOs. It could last from couple of hours to tens of hours. Use only fresh
batteries and do not mix fresh and old batteries. Insufficient battery power may cause error
messages.
12
3. GOTONOVATM 8401 Hand Controller
HBX
Port
USB
Port
Figure 18. GOTONOVA 8401 Hand Controller
GOTONOVATM 8401 hand controller (HC) is the standard controller for a MiniTower, as
shown in Figure 18.
3.1. Key Description
• MENU: Press “MENU” to enter the Main Menu.
• BACK: Move back to the previous screen, or end/cancel current operation, such as
slewing.
• ENTER: Confirm an input, go to the next menu, select a choice, or slew the telescope
to a selected object.
• Arrow (▲▼►◄): Press ▲▼ buttons to move a telescope along the DEC direction,
►◄ to move a telescope along the RA direction. Brows the menu or move the cursor
in operating menu.
13
• Number Keys: Input numerical values. Also used to adjust speeds (1: 1X; 2: 2X; 3: 8X;
4: 16X; 5: 64X; 6: 128X; 7: 256X; 8: 512X; 9: MAX)
• Light Key(☼): Turns on/off the red LED reading light on the back of the controller.
• ? Key: For help or extra information.
• STOP/0 Key: Stop/Start tracking.
• HBX (Handbox) port: connect the HC to MiniTower mount using a 6-wire RJ11 cable.
• USB port: connect the HC to a Computer via a USB cable.
3.2. The LCD Screen
The 8401 HC is designed to use for both iOptron’s equatorial (EQ) mount, such as the
SmartStar
AltAzimuth (A/A) mount, which includes all SmartStar
consists of a large 8-line LCD screen, which displays all the information as shown in Figure 19.
The user interface is simple and easy to learn.
®
-PR GOTO German Equatorial Mount and the GOTONOVATM Equatorial Kit, and
®
GOTO mounts and telescopes. It
Figure 19. 8401 HC LCD Information Screen
• GPS status: When the power is turned on, it shows “GPS ON”, which means a GPS
receiver is connected. When the GPS receiver finds the satellite and receives GPS
signal, it shows “GPS OK”. The “GPS OK” may turn off after few minutes.
• Slew speed: It has 9 speeds: 1X, 2X, 8X, 16X, 64X, 128X, 256X(1º/sec),
512X(2º/sec), MAX(4º/sec).
• Tracking speed: It has 4 speeds: Cel (celestial), Sol (Solar), Lun (Lunar), Def (user
defined)
• Mount Type: EQ is equatorial and A/A altazimuth.
3.3. Connection to a Computer
The GOTONOVA hand controller has a USB port which can be connected to a
computer. This will allow Firmware Upgrading, Database Updating, or Planetarium application.
A USB2COM driver is needed to simulate the USB port to a RS-232 serial port. (see Appendix
D)
14
The MiniTowerTM can be controlled by a number of popular astronomy software
programs. For astronomy software that does not have an embedded iOptron mount driver, an
ASCOM driver and related platform are needed. Please refer to Appendix F for more
information.
15
4. Getting Started
In order to experience the full GOTO capability of GOTONOVA technology it is very
important to set up the mount correctly before observation.
4.1. Level and Align the Mount
4.1.1. Level the Mount.
Leveling is critical for a good GOTO and tracking accuracy.
First, loosen tripod rod (#4) and tripod lock (#1) a little. Then
loosen azimuth clutch lock (#11) half turn. Check the bubble level
indicator (#19), adjust the level adjustment screws (#6), and center the
bubble in the indicator. Turn the mount by a hand and make sure that
the mount is leveled on all sides while turning. Adjust the level
adjustment screws again if the bubble is not centered while turning.
If your mount is equipped with level adjustment locks (#5 in
Figure 8), after the bubble is centered, hold the level adjustment screws
(#6) with one hand, and tighten the level adjustment lock (#5) with
another hand. If the mount level needs to be re-adjusted, loose the level
adjustment lock (#5) first.
Tighten the azimuth clutch lock (#11). Tighten the tripod knob
(#3). Tighten the tripod lock (#1). Make sure the mount is always
leveled.
Figure 20
4.1.2. Initial Positions
Each time the Mount is turned on, the default position is Parking Position, i.e., altitude is
90º0’0” and azimuth is 180º0’0”, which means the “SOUTH” mark is pointing to south and the
telescope is pointing straight up at the zenith. To set the Park Position, you can:
Face the South. Align the Mount to south by
turning the South mark facing south. An additional
compass is needed. There are two ways to do so. One
is loosen the azimuth clutch lock (#11) a little and
manually turn the Mount to face south. Then tighten the
azimuth clutch lock again. The other is turn on the
mount. Turn the mount facing south using hand control.
Then turn off the power. Note: Do not put the compass
directly on top of the mount. The motor parts of the
mount could affect the pointing accuracy of the
compass.
2) Up
#13
1) South
Point to Zenith. Unlock the altitude clutch lock
(#13) and rotate the telescope to point up directed at the
Zenith. A torpedo level may help.
Figure 21
16
Once it is straight re-tighten the altitude lock to make sure OTA is secure and will not
spin.
4.2. Setting Up the Mount
A MiniTower is equipped with a GPS receiver, which will receive the local time, longitude
and latitude information from satellites after the link is established. However, manual input is still
needed for time zone and Daylight Saving setting.
A clear sky outside is needed for GPS to communicate well with the satellites.
4.2.1. Set Up Time Zone
Press MENU button, from the main menu, scroll down and select “Set up controller”
Select and slew
Sync. to target
Electronic focuser
Set up controller
Align
PEC option
Set up Tracking
User objects
Press ENTER. Scroll down and select “Set up site”
Set up Local Time
Set up site
Set N/S hemisphere
Set display contrast
Set Eyepiece light
Set Backlight
Set anti-backlash
Set Key Beep
Press ENTER. The longitude and latitude coordinates will be updated when the GPS
picks up satellite signals. “W/E” means west/east hemisphere; “N/S” means north/south
hemisphere; “d” means degree; “m” means minute; and “s” means second.
Set up site info:
Longitude:
W071d27m47s
Latitude:
N42d15m40s
300 Min. behind UT
If for any reason your GPS can’t pick up a signal you can manually enter the GPS
coordinates. Press ◄ or ► key to move the cursor and using ▲ or ▼ key to toggle between
“W” and “E”, “N” and “S”, using number key to change the numbers. It is always a good idea to
do your home work to get the GPS coordinates before traveling to a new observation site.
The site coordinates information can be found from internet, such as GPSVisualizer
(http://www.gpsvisualizer.com/geocode
), by entering the city name or address. In case you only
find the site information in decimal format you can convert them into d:m:s format by multiplying
the decimal numbers by 60. For example, N47.53 can be changed to N47º31'48”: 47.53º = 47º
+0.53º, 0.53º=0.53x60'=31.8', 0.8'=0.8x60"=48". Therefore, 47.53º=47º31'48" or 47d31m48s.
Same as N47º31.8’: 31.8’=31’+0.8’, 0.8’=0.8x60”=48”.
Press ◄ or ► key, move the cursor to the bottom of the screen to set the time zone
information (add or subtract 60 minutes per time zone). Enter minutes “ahead of” or “behind” UT
(universal time).
• New York City is 300 minutes “behind” UT
• Los Angeles is 480 minutes “behind” UT
• Rome is 60 minutes “ahead of” UT
• Beijing is 480 minutes “ahead of” UT
• Sydney is 600 minutes “ahead of” UT
All the time zones in North America are behind UT, as shown in the following table. So
make sure it shows “behind” instead of “ahead of” UT.
Time Zone Hawaii Alaska Pacific Mountain Central Eastern
Hour behind UT -10 -9 -8 -7 -6 -5
Enter Minutes 600 540 480 420 360 300
To adjust minutes, move the cursor to each digit and use the number keys to input
number directly. To change the “behind” or “ahead of” UT, move the cursor to “ahead” and using
▲ or ▼ key to toggle between “behind” and “ahead”. When the number is correct, press
ENTER and go back to the previous screen.
For other parts of the world you can find your “time zone” information online at websites
such as http://www.timeanddate.com/worldclock/
. DO NOT COUNT DAYLIGHT SAVING TIME.
4.2.2. Set Up Daylight Saving Time
Scroll up and select “Set up local Time”
Set up Local Time
Set up site
Set N/S hemisphere
Set display contrast
Set Eyepiece light
Set Backlight
Set anti-backlash
Set Key Beep
Press ENTER.
Set local time:
2008-06-01 11:55:09
Daylight Saving Time Y
18
Use the ◄ or ► key to move the cursor to the bottom of the screen, use the ▲ or ▼
button to toggle between “Y” and “N”. Press ENTER to go back the previous screen. The local
time also can be manually entered in case of GPS malfunction or testing the mount inside.
The time and site information will be stored inside HC memory chip. If you are not
traveling to other observation site, they do not need to be changed.
4.2.3. Set Mount Type
The #8401 hand controller that comes with the MiniTower can function in both EQ and
AltAz. For the MiniTower you will need to set the hand controller to function in AltAz. Scroll
down and select “Set Mount Type”,
Set up site
Set N/S hemisphere
Set display contrast
Set Eyepiece light
Set Backlight
Set anti-backlash
Set Key Beep
Set Mount Type
Press Enter.
Equatorial Mount
Alt/Azi Mount
Select Alt/Azi mount and press ENTER to go back the previous screen.
4.2.4. Set Anti-backlash
For an Alt/Azi operation, both R.A. and DEC anti-backlash should be set to 0 step.
Scroll down and select “Set anti-backlash”
Set up Local Time
Set up site
Set N/S hemisphere
Set display contrast
Set Eyepiece light
Set Backlight
Set anti-backlash
Set Key Beep
Press ENTER. A R.A. anti-backlash will display:
19
R.A. anti-backlash:
0150 steps
One steps equal to
1.5 arc second.
To adjust steps move the cursor to each digit and use the number keys to input number
directly. Press ENTER – “DEC anti-backlash” will display:
DEC anti-backlash:
0150 steps
One steps equal to
1.5 arc second.
Move the cursor to each digit and use the number keys to set the anti-backlash to 0.
Press ENTER to go back the previous screen.
Press BACK button to go back to main menu.
4.2.5. Go to the Moon
After performing these set-ups the mount is ready to GOTO and track objects. One of
the most common objects is the Moon.
To slew to the Moon press MENU button. Select “Select and slew” by pressing the
ENTER button. Select “Planets, Sun, Moon”, and use the ▲ or ▼ buttons to select Moon. Press
ENTER. The telescope will automatically slew to the Moon and lock on. It will automatically
begin to track once it locks on. Use the arrow keys to center the Moon in your eyepiece if it is
not centered. Or for better performance use Sync to Target (see instructions later).
4.2.6. Initial Star Alignment
A simple star alignment/synchronization can be performed to improve the GOTO and
tracking accuracy. To do so, after slew the mount to an object, such as Moon, press MENU
button, scroll down to “Sync. To Target”, follow the on-screen instruction and press ENTER.
An alternate way is to perform an “Easy One Star Align”. To do so, press MENU button,
scroll down to “Align”, select “Easy One Star Align” and press ENTER. The screen will list three
bright objects for you to select from (ex. Moon, Jupiter, Venus). Select an object using ▲ or ▼
key. Then press ENTER. Next use the arrow keys to slew to the object until it is centered in your
eyepiece. Then press ENTER.
You may need to use the number keys to change the slewing speed to make the
centering procedure easier.
20
4.3. Turn Off the Mount
When you are finished observing it is recommended to return the mount to Park
Position. If the mount is not moved then no initial set up is needed when you turn on the mount
next time. To park the telescope press the MENU button, scroll down to “Park Telescope” and
press ENTER. Once the telescope returns to Park Position turn the power off.
21
5. Use the MiniTower
5.1. Manual Operation of a Telescope
You may observe land and astronomical objects using GOTONOVA’s arrow keys.
After the telescope was assembled (referring to Section 2. Telescope Assembly), flip the
I/O switch on the telescope mount to turn on the mount. Use ►,◄,▼ or ▲ buttons to point the
telescope to the desired object. You may need to use the number keys to change the slewing
speed. Simply press a number while slewing to change the slew speed.
5.2. Slew to an Object
Press the MENU button. From the main menu select “Select and Slew.” Select an object
that you would like to observe and press the ENTER key.
The GOTONOVA
the ► or ◄ buttons to move the cursor and the ▼▲ buttons to change the individual number.
The check mark (√) indicates the object is above the horizon, and a cross mark (X) means it is
below the horizon. In some catalogs those stars below the horizon will not display on the hand
controller.
TM
8401 hand controller has a database of about 130,000 objects. Use
5.2.1. Planets, Sun, Moon
There are 10 objects in the Solar system catalog.
5.2.2. Deep sky objects
This menu includes objects outside our Solar system such as galaxies, star clusters,
quasars, and nebulae.
• Named Deepsky Objects: consists of 60 deep sky objects with their common names.
A list of named deep sky objects is attached in Appendix C.
• Messier Catalog: consists of all 110 objects.
• NGC IC Catalog: consists of 7840 objects in NGC catalog and 5386 objects in IC
catalog. To select an object from NGC or IC catalog, move the cursor to NGC,
using▲ or ▼ button to toggle between NGC and IC. Then move the cursor to
numerical position and use the number button to select the object.
• UGC Catalog: consists of 12939 objects.
• MCG Catalog: consists of 29004 objects. They are listed numerically from MCG+15
to MCG-05.
• Caldwell Catalog: consists of 109 objects.
• Abell Catalog: consists of 2712 objects.
• Herschel Catalog: consists of 400 objects.
22
5.2.3. Comets
This catalog contains up to 190 comets. This database is customer upgradeable.
5.2.4. Asteroids
This catalog contains up to 4096 asteroids. This database is customer upgradeable.
5.2.5. Stars:
• Named Stars: consists of 191 stars with their common names. They are listed
alphabetically. A list is attached in Appendix C.
• Double Stars: consists of 40 double stars. A list is attached in Appendix C.
• GCVS Variable Stars: consists of 38624 GCVS variable stars. They are listed
numerically.
• SAO Catalog: consists of 26584 SAO catalog objects. They are listed numerically.
5.2.6. Constellations
This catalog consists of 88 modern constellations with their names. They are listed
alphabetically. A list is attached in Appendix C.
5.2.7. User Objects
This catalog can consist up to 256 user predefined objects. These objects need to be
entered before they can be selected for slewing.
5.2.8. Enter R.A. DEC
Here you can go to a target by entering its R.A. and DEC numbers.
5.3. Sync to Target
This operation will match the telescope's current coordinates to Target Right Ascension
and Declination. After slew to an object, press MENU—then scroll to “Sync to Target” and press
ENTER. Follow the screen to do the sync. Using this function will re-calibrate the computer to
the selected object. Multiple syncs can be performed if needed.
“Sync to Target” will only work after “Select and slew” is performed. Otherwise, the
system may perform incorrectly. You can change the slewing speed to make the centering
procedure easier. Simply press a number (1 through 9) to change the speed. The default slew
speed is 64X.
“Sync to Target” does the same thing as one star alignment except that you choose the
object to “sync” to. One star alignment chooses the star/object for you.
23
5.4. Electric Focuser
If you have an electric focuser in your system and it is supported by GOTONOVA, use
this option to adjust the focuser. Use ◄► for coarse tuning and ▼▲ for fine tuning.
Refer to your Electric Focuser operation manual for detailed instruction.
5.5. Set Up Controller
5.5.1. Set Up Local Time
Refer to 4.2.2.
5.5.2. Set Up Site
Refer to 4.2.1.
5.5.3. Set N/S Hemisphere
Set north or south hemisphere.
5.5.4. Set Display Contrast
Use arrow keys to adjust LCD display contrast.
5.5.5. Set Eyepiece Light
If you have an illuminated-reticule eyepiece or illuminated polar scope, and it is
supported by GOTONOVA hand controller-- use this option to adjust the light intensity.
5.5.6. Set Backlight
Adjust LCD and keypad backlight.
5.5.7. Set Anti-backlash
Use Array Keys to move the cursor and Number Keys to change the number. 0 is
suggested for Alt/Azi mount. For an EQ mount, the default setting is 150 for both DEC and R.A.
5.5.8. Set Key Beep
Turn the key beep on/off.
5.5.9. Set Mount Type
Although MiniTower is an Alt/Azi mount the controller can be used for either Equatorial
Mount or Alt/Azi Mount. This command changes between the two positons (EQ and AltAz).
24
5.5.10. Reset All
Reset all settings to factory default data.
5.5.11. Update Firmware
Firmware updating using iOptron Downloader through USB port on hand controller.
(Refer to Appendix E.)
5.5.12. Set gear ratio
Reserved for future products.
5.5.13. Set Language
Select hand controller language.
5.6. Align
This function is used for aligning the telescope. In addition to “Easy One Star Align,” the
system also provides “One Star Align” and “Two Star Align” for Alt/Azi mount. “Three Star Align”
is only supported by EQ mode.
5.6.1. One Star Align
From the main menu select “Align”. Select “One Star Align”. Use ▲ and ▼ buttons to
select a star and press ENTER. A list of align planets or stars that are above the horizon is
computed based on your local time and location. Use arrow buttons to move the telescope and
center the star in your eyepiece. You can use the number buttons to change the slew speed.
Press ENTER when finished. If your setup is leveled well, one star alignment should be
sufficient for good GOTO accuracy. To increase the accuracy you may choose to do two star
alignment.
5.6.2. Two Star Align
Two star alignment will increase the GOTO accuracy of the mount. It is suggested to do
two star alignment after one star alignment. Two star alignment requires a wider view of the sky,
since the two align stars need to be far apart. Select “Two Star Align” in the Align menu. When
you finish the first star, the system will prompt you to choose the second star. If the star you
choose is too close to the first one, the system will let you choose another one. When you are
aligned with the second star, two star alignment is finished. You can reject the suggested star if
it is blocked by the tree or behind the house.
“Two Star Align” results will be overridden if “One Star Align” or “Sync. to Target” is
performed after “Two Star Align.”
25
5.6.3. Three-Star Align
It will increase the accuracy even higher and requires an even wider view of the sky.
This basically asks you to choose a third star to align after two-star align. Three star alignment
is not available for Alt/Azi mode.
5.6.4. Dis R.A axis error
This only works for EQ mode. This displays the celestial pole point error. Point error is
zero when you power on the mount (unless you “Park Telescope” before powering off.
5.6.5. Test Anti-backlash
This command tests the backlashes in both R.A. and DEC. The saved numbers will
show in “Set Anti-backlash” menu. However, if no high accuracy is needed or your equatorial
mount is not a high accuracy unit (i.e. the worm gear has different clearance in different
positions) you can omit this procedure.
This command only works for EQ mode.
5.6.6. Polaris Position
This shows Polaris position.
5.7. PEC Option
Periodic Error Correction (PEC) is not supported in Alt/Azi mode.
5.8. Set Up Tracking
A user can set up tracking in the main menu by selecting “Set up tracking”. Then the
user can select “Sidereal speed”, “Solar speed”, “Lunar speed”, and “User defined speed”. For
“User defined speed” this can be adjusted from 91% to 109% of sidereal speed by pressing the
▲or ▼ buttons.
5.9. User Objects
Besides various star lists available in the hand controller --you can add, edit or delete
your own user-defined objects. All data you enter is supposedly J2000.0 epoch.
5.10. Auto Guide
This is an advanced function for autoguiding when a guiding scopes and a camera are
equipped. The GOTONOVA supports autoguiding through ASCOM protocol, such as PHD
Guiding or Guidedog, or an ST-4 guiding camera (an extra ST-4 to HBX adapter is needed).
Please follow the guiding software for detailed instructions.
This function is not supported in Alt/Azi mode.
26
5.11. Park Scope
This procedure only needs to be done if you do not move your telescope mount after you
power off the GOTONOVA. Celestial pole pointing error will be stored to flash memory and
recalled when you power on again.
5.12. To Park Position
This moves your telescope to park position. When power is turned on--the mount
assumes the physical position is the park position. This is its reference point for all other
objects.
27
6. Maintenance and Servicing
6.1. Maintenance
The MiniTower is designed to be maintenance free. Do not overload the mount. Do not
drop the mount which will damage the mount or affect the GOTO tracking accuracy
permanently. Use a wet cloth to clean the mount and hand controller. Do not use solvent.
If your mount is not to be used for an extended period, dismount the OTAs and
counterweight. Remove the batteries from the battery holder if they were installed.
6.2. Troubleshooting
The following suggestions may be helpful for the operation of the MiniTower. More
information can be found in our online FAQ section (www.iOptron.com
1. Error Message “Warning! DEC. (or R.A.) driver motor over current. Please check
balance.”
(1) Check if the mount or OTA is blocked by any obstructions.
(2) Try to operate the mount without an OTA.
(3) Check the power supply. This is a common reason for this message and
unexpected slew behavior or movement. which include:
• Batteries:
slewing and GOTO will deplete battery power very quickly)
• AC or DC adapter:
• Extension cord:
extension cord has been known to cause this error message. Also check all the
plugs and connections.
(4) Check the hand controller cord. Unplug it and re-plug into the other HBX port.
Are the batteries fresh? How long have they been used? (frequent
Check the plugs to the mount and to the power outlet.
Make sure the cord is in good condition. Power drop along the
then click on “support”).
2. Error Message “Warning! Can not communicate with DEC motor controller.”
(1) Check the hand controller cord. Unplug it and re-plug into another HBX port.
(2) Check the power supply, which include:
• Using the battery? Is the battery fresh? How long it has been used? (frequent
slew and GOTO will deplete battery power very quickly)
• Using AC or DC adapter? Check the plugs to the mount and to the power outlet.
• Using extension cord? Make sure the cord is in good condition. Power drop along
the extension cord was known to cause the problem. Also check all the plugs and
connections.
3. The object is jumping up and down in the eyepiece or over-slewed, and other
unexpected slew behavior or movement.
(1) Use most updated firmware.
(2) Set backlash to 0 in both DEC and RA.
(3) Check the power supply, which include:
• Using the battery? Is the battery fresh? How long it has been used? (frequent
slew and GOTO will deplete battery power very quickly)
28
• Using AC or DC adapter? Check the plugs to the mount and to the power outlet.
• Using extension cord? Make sure the cord is in good condition. Power drop along
the extension cord was known to cause the problem. Also check all the plugs and
connections.
(4) System balancing.
4. Star Alignment accuracy; GOTO accuracy
(1) Leveling (very important).
(2) Site information (minutes ahead or behind UT, DST).
(3) System balancing.
(4) Use most updated firmware.
(5) Select right mount type (A/A).
(6) Set backlash to 0 in both DEC and RA.
(7) Check the power supply, which include:
• Using the battery? Is the battery fresh? How long it has been used? (frequent
slew and GOTO will deplete battery power very quickly)
• Using AC or DC adapter? Check the plugs to the mount and to the power outlet.
• Using extension cord? Make sure the cord is in good condition. Power drop along
the extension cord was known to cause the problem. Also check all the plugs and
connections.
6.3. iOptron Customer Service
If you have a question concerning your MiniTower contact the iOptron Customer Service
Department. Customer Service hours are 9:00 AM to 5:00 PM, Eastern Time, Monday through
Friday. In the unlikely event that the MiniTower requires factory servicing or repairs, write or call
the iOptron Customer Service Department first to receive an RMA# before returning the
telescope to the factory. Please provide details as to the nature of the problem as well as your
name, address, and daytime telephone number. We have found that most problems can be
resolved by telephone. So please call first to avoid returning the telescope for repair. Call toll
free in the U.S. 866.399.4587 or 1.781.569.0200. It is also strongly suggested that to send
technical questions to support@ioptron.com
.
29
Appendix A. Technical Specifications
Mount AltAzimuth Mount
Body Materials Die-cast Aluminum
Motor Dual-Axis DC Servomotor, DC12V
Gear Aluminum worm wheel/brass worm gear
Bearing 4 conical steel ball bearings
Speed
GPS 32-channel GPS
GOTO System GOTONOVATM 130,000 objects database
GOTO accuracy 1 Arc Min. (Typical)
Resolution 1 Arc Sec.
Tracking Automatic
Payload 25 lb
Second Payload 8 lb
Tripod 1.5” Stainless Steel
Battery
Power Requirement DC 12V±2V, >1.2A
USB Port Yes
Protocol ASCOM
Firmware Upgrade Yes
PC Computer Control Yes
Weight with tripod 42 lbs
(1×,2×,8×,16×,64×,128×,256×,512×,MAX）
Dual-Axis, 9-Gear, Electronic
AA x 8（Not Included）
30
Appendix B. GOTONOVATM 8401 HC MENU STRUCTURE
MENU
Select and SlewSelect and Slew
Planets, Sun, MoonPlanets, Sun, Moon
Mercury
Mercury
Venus
Venus
Mars
Mars
Jupiter
Jupiter
Saturn
Saturn
Uranus
Uranus
Neptune
Neptune
Pluto
Pluto
Sun
Sun
Moon
Moon
Deep Sky ObjectsDeep Sky Objects
Named Deepsky Object
Named Deepsky Object
Messier Catalog
Messier Catalog
NGC IC Catalog
NGC IC Catalog
UGC Catalog
UGC Catalog
MCG Catalog
MCG Catalog
Caldwell Catalog
Caldwell Catalog
Abell Catalog
Abell Catalog
Herschel Catalog
Herschel Catalog
CometsComets
AsteroidsAsteroids
StarsStars
Named Stars
Double Stars
GCVS Variable Stars
SAO Catalog
ConstellationsConstellations
User ObjectsUser Objects
Enter R.A. and DECEnter R.A. and DEC
Sync. To TargetSync. To Target
Electric Focuser
Electric FocuserElectric Focuser
Focus
FocusFocus
Set Anti-backlash
Set Anti-backlashSet Anti-backlash
31
Set Up ControllerSet Up Controller
AlignAlign
Set Up Local Time
Set Up Local Time
Set Up Site
Set Up Site
Set N/S Hemisphere
Set N/S Hemisphere
Set Display Contrast
Set Display Contrast
Set Eyepiece Light
Set Eyepiece Light
Set Backlight
Set Backlight
Set Anti-backslash
Set Anti-backslash
Set Key Beep
Set Key Beep
Set Mount Type
Set Mount Type
Reset All
Reset All
Upgrade Firmware
Upgrade FirmwareUpgrade Firmware
Set Gear Ratio
Set Gear RatioSet Gear Ratio
Set Language
Set LanguageSet Language
Easy One Star Align
Easy One Star AlignEasy One Star Align
One Star Align
One Star AlignOne Star Align
Two Star Align
Two Star AlignTwo Star Align
Three Star Align
Three Star AlignThree Star Align
Disp. R.A. Axis Error
Disp. R.A. Axis ErrorDisp. R.A. Axis Error
Test Anti-backslash
Test Anti-backslashTest Anti-backslash
Polaris Position
Polaris PositionPolaris Position
PEC OptionPEC Option
PEC Play BackPEC Play Back
Record PECRecord PEC
Delete PEC RecordDelete PEC Record
Set Up TrackingSet Up Tracking
Sidereal SpeedSidereal Speed
Solar SpeedSolar Speed
Lunar SpeedLunar Speed
User Defined SpeedUser Defined Speed
User Objects
User ObjectsUser Objects
Add A New Record
Add A New RecordAdd A New Record
Modify Records
Modify RecordsModify Records
Delete One Record
Delete One RecordDelete One Record
Erase All Records
Erase All RecordsErase All Records
Auto Guide
Auto GuideAuto Guide
Park Scope
Park ScopePark Scope
To Park Position
To Park PositionTo Park Position
32
Appendix C. GOTONOVATM Star List
GOTONOVA Deep Sky Object List
for 8401, 8402 and 8403
ID No. OBJECT NGC # Messier # IC# A(Abell) U(UGC)
1 Andromeda Galaxy 224 31
2 Barnards Galaxy 6822
3 Beehive Cluster 2632 44
4 Blackeye Galaxy 4926 64
5 Blinking Planetary Nebula 6826
6 Blue Flash Nebula 6905
7 Blue Planetary 3918
8 Blue Snowball Nebula 7662
9 Box Nebula 6309
10 Bubble Nebula 7635
11 Bipolar Nebula 6302
12 Butterfly Cluster 6405 6
13 California Nebula 1499
14 Cat's Eye Nebula 6543
15 Cocoon Nebula 5146
16 Cone Nebula 2264
17 Cork Nebula 650-51 76
18 Crab Nebula 1952 1
19 Crescent Nebula 6888
20 Draco Dwarf 10822
21 Duck Nebula 2359
22 Dumbbell Nebula 6853 27
23 Eagle Nebula 16
24 Eight-Burst Nebula 3132
25 Eskimo Nebula 2392
26 Flaming Star Nebula 405
27 Ghost of Jupiter 3242
28 Great Cluster 6205 13
29 Helix Nebula 7293
30 Hercules Galaxy Cluster 2151
31 Hind's Variable Nebula 1555
32 Hubble's Variable Nebula 2261
33 Integral Sign Galaxy 3697
34 Jewel Box Cluster 4755
33
35 Keyhole Nebula 3372
36 Lagoon Nebula 6523 8
37 Little Gem 6445
38 Little Gem Nebula 6818
39 Little Ghost Nebula 6369
40 North American Nebula 7000
41 Omega Nebula 6618 17
42 Orion Nebula 1976 42
43 Owl Nebula 3587 97
44 Pelican Nebula 5070
45 Phantom Streak Nebula 6741
46 Pinwheel Galaxy 598 33
47 Pleiades 45
48 Ring Nebula 6720 57
49 Ring Tail Galaxy 4038
50 Rosette Nebula 2237
51 Saturn Nebula 7009
52 Sextans B Dwarf
53 Small Magellanic Cloud 292
54 Sombrero Galaxy 4594
55 Spindle Galaxy 3115
56 Tank Track Nebula 2024
57 Trifid Nebula 6514
58 Ursa Minor Dwarf
59 Whirlpool Galaxy 5194
60 Wild Duck Cluster 6705
5373
104
20
9749
51
11
34
GOTONOVA Double Star List
for 8401, 8402 and 8403
No. Object Const
1 Eta Cas 21732
2 Alpha Psc 110291
3
Theta
Per 38288
4 Alpha For 168373
5 Alpha Aur 40186
SAO Name
Achird
Alrisha
Fornacis
Capella
6 Sigma Ori 132406
7 Mu Ori 113389
8 Alpha CMa 151881 Sirius
9 Delta Gem 79294
10 Alpha Gem 60198
Wasat
Castor
11 Alpha CMi 115756
12 Epsilon Hya 117112
13 HR 3579 42642
14 Kapa UMa 42661
15 Psi Vel 221234
16 Gamma Leo 81298
Algieba
17 HR 4167 222199
18 Mu Vel 222321
19 Alpha UMa 15384 Dubhe
20 Zeta UMa 28737
Mizar
21 Iota Leo 99587
22 Gamma Cen 223603
23 Gamma Vir 138917
Porrima
24 Beta Mus 252019
25 HR 5089 204545
26 Alpha Cen 252838
27 Zeta Boo 101145
28 Gamma Lup 225938
29 Gamma CrA 83958
30 Xi Sco 159665
31 Alpha Sco 184415 Antares
32 Lambda Oph 121658
Marfic
33 Zeta Her 65485
34 Eta Oph 160332 Sabik
35 70 Oph 123107
36 Zeta Sgr 187600 Ascella
37 Delta Cyg 48796
38 Beta Del 106316 Rotanev
39 Tau Cyg 71121
40 Epsilon Lyr 67310 double double
GOTONOVA Named Star List
for 8401, 8402 and 8403
001 Acamar 049 Ascella 097 Kaus Australis 145 Rassalas
002 Achernar 050 Asellus Australis 098 Kaus Borealis 146 Rasagethi
003 Acrux 051 Asellus Borealis 099 Kaus Media 147 Rasalhague
004 Acubens 052 Aspidiske 100 Keid 148 Rastaba
005 Adhafera 053 Atik 101 Kitalpha 149 Regulus
006 Adhara 054 Atlas 102 Kochab 150 Rigel
007 Al Na’ir 055 Atria 103 Kornephoros 151 Rigel Kentaurus
008 Albali 056 Avoir 104 Kurhah 152 Ruchbah
009 Alberio 057 Azha 105 Lesath 153 Rukbat
010 Alchibar 058 Baten Kaitos 106 Maia 154 Sabik
011 Alcor 059 Beid 107 Marfik 155 Sadachbia
012 Alcyone 060 Bellatrix 108 Markab 156 Sadalbari
013 Aldebaran 061 Betelgeuse 109 Matar 157 Sadalmelik
014 Alderamin 062 Biham 110 Mebsuta 158 Sadalsuud
015 Alfirk 063 Canopus 111 Megrez 159 Sadr
016 Algedi 064 Capella 112 Meissa 160 Saiph
017 Algenib 065 Caph 113 Mekbuda 161 Scheat
018 Algiebra 066 Castor 114 Menkalinan 162 Schedar
019 Algol 067 Celabrai 115 Menkar 163 Seginus
020 Algorab 068 Celaeno 116 Menkent 164 Shaula
021 Alhena 069 Chara 117 Menkib 165 Sheiak
022 Alioth 070 Chertan 118 Merak 166 Sheratan
023 Alkaid 071 Cor Caroli 119 Merope 167 Sirius
024 Alkalurops 072 Cursa 120 Mesartim 168 Skat
025 Alkes 073 Dabih 121 Miaplacidus 169 Spica
026 Almach 074 Deneb 122 Mintaka 170 Sterope
027 Alnasl 075 Deneb Algedi 123 Mira 171 Sulafat
028 Alnilam 076 Deneb Kaitos 124 Mirach 172 Syrma
029 Alnitak 077 Denebola 125 Mirfak 173 Talitha
030 Alphard 078 Dubhe 126 Mirzam 174 Tania Australis
031 Alphecca 079 Edasich 127 Mizar 175 Tania Borealis
032 Alpheratz 080 Electra 128 Muphrid 176 Tarazed
033 Alrakis 081 Elnath 129 Muscida 177 Taygeta
034 Alrescha 082 Eltanin 130 Nashira 178 Thuban
035 Alshain 083 Enif 131 Nekkar 179 Unukalhai
036 Altair 084 Errai 132 Nihal 180 Vega
037 Altais 085 Fomalhaut 133 Nunki 181 Vindemiatrix
038 Alterf 086 Furud 134 Nusakan 182 Wasat
039 Aludra 087 Gacrux 135 Peacock 183 Wazn
040 Alula Australis 088 Giausar 136 Phact 184 Yed Posterior
041 Alula Borealis 089 Gienah 137 Phecda 185 Yed Prior
042 Alya 090 Gomeisa 138 Pherkad 186 Zaniah
043 Ancha 091 Graffias 139 Pleione 187 Zaurak
044 Ankaa 092 Groombridge 1830 140 Polaris 188 Zavijava
045 Antares 093 Grumium 141 Pollux 189 Zosma
046 Arcturus 094 Hamal 142 Porrima 190 Zubenelgenubi
047 Arkab 095 Homan 143 Procyon 191 Zubeneschamali
048 Arneb 096 Izar 144 Propus
A
A
A
A
A
A
A
Aqr
A
A
AraA
A
A
A
Aur
r
r
r
A
x
r
r
A
r
Modern Constellations
for 8401, 8402 and 8403
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
Constellation Abbreviation
ndromeda
ntlia
pus
quarius
quila
ries
uriga
Boötes Boo
Caelum Cae
Camelopardalis Cam
Cancer Cnc
Canes Venatici CVn
Canis Major CMa
Canis Minor CMi
Capricornus Cap
Carina Car
Cassiopeia Cas
Centaurus Cen
Cepheus Cep
Cetus Cet
Chamaeleon Cha
Circinus Cir
Columba Col
Coma Berenices Com
Corona Australis CrA
Corona Borealis CrB
Corvus Crv
Crater Crt
Crux Cru
Cygnus Cyg
Delphinus Del
Dorado Dor
Draco Dra
Equuleus Equ
Eridanus Eri
Fornax For
Gemini Gem
Grus Gru
Hercules Her
Horologium Hor
Hydra Hya
Hydrus Hyi
Indus Ind
nd
nt
ps
ql
ra
ri
No.
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
Constellation Abbreviation
Lacerta Lac
Leo Leo
Leo Minor LMi
Lepus Lep
Libra Lib
Lupus Lup
Lynx Lyn
Lyra Ly
Mensa Men
Microscopium Mic
Monoceros Mon
Musca Mus
Norma Nor
Octans Oct
Ophiuchus Oph
Orion Ori
Pavo Pav
Pegasus Peg
Perseus Pe
Phoenix Phe
Picto
Pisces Psc
Piscis Austrinus Ps
Puppis Pup
Pyxis Py
Reticulum Ret
Sagitta Sge
Sagittarius Sg
Scorpius Sco
Sculptor Scl
Scutum Sct
Serpens Se
Sextans Sex
Taurus Tau
Telescopium Tel
Triangulum Tri
Triangulum Australe Tr
Tucana Tuc
Ursa Major UMa
Ursa Minor UMi
Vela Vel
Virgo Vi
Volans Vol
Vulpecula Vul
Pic
Appendix D. Set Up USB-PC Connection
1. Download USB2COM driver (cp2102.zip file for 8401) from iOptron Website
2. Install cp2101(usb2com) driver
Choose the appropriate driver for your OS. In this case is a Windows XP operation system.
Double click on it, and you will see:
Click “Next”.
38
Select “I accept the terms of license agreement”, and click “Next”
Using the default installation path, c:\SiLabs\MCU\CP210x, or specify your own path by click
“Change”. Click “Next”. Then click “Install”.
39
When finished installation, click “Finish”
3. Plug the USB cable to the USB port on your PC, plug the other end of the USB cable
to hand controller. Turn on the power on the mount.
4. Install the Hardware
The computer will find a new hardware and show the following screen
Select “No, not this time” and click “Next”.
40
Select “Install from a list or specific location” and click “Next”.
Select “Search for the best driver in these locations,” and check “Include this location in the
search.”
Click on “Browse” and select the cp210x driver from directory
c:\SiLabs\MCU\CP210x\Win2K_XP, click OK.
41
Click “Next”. The computer will start to install the driver for the USB2COM. When the installation
is done, click “Finish”.
If the computer shows “find a new hardware” screen again, just repeat the steps in this section
again.
42
Now your computer should be ready for Firmware Upgrading; computer communication with the
mount via ASCOM platform; and planetarium software applications. However, you need to find
assigned COM port number for the USB connection. To do so, right click “My Computer”, and
click “Properties”
Click “Hardware”, click “Device Manager”
43
Double click on “Ports (COM & LPT)”. Find the COM number and write it down (in the following
figure, it is COM4)
44
Appendix E. Firmware Upgrade
1. Download and install Firmware Downloader from iOptron Website
2. Double click and open “iOptron Downloader”
On the interface, select appropriate port using pull-down menu (in this case, COM4):
45
Click “Open Data File” and select the appropriate “.bin” file that matches your hand controller.
Then click “Open”. Select “Main Program” in Update Type.
Click “Start Download”
It shows “Please reset GOTONOVA[GOTOSTAR], waiting for connection…”
On the hand controller, press “MENU”, and using ▼▲ scroll to select “Set u controller”, press
“ENTER”, then select “Upgrade firmware”, press “ENTER” and the upgrade will start.
46
The upgrade is complete. Turn your mount power off then on again.
Typical Errors:
1. Invalid Port Number: in Device Manager: make sure you have the correct COM port
number for CP210x.
2. Screen is now blank: Wrong “.bin” file: make sure you have the correct “.bin” file for
firmware upgrade.
3. Wrong downloader: you should use iOptron Downloader instead of the Flash
Downloader.
4. Use cp210x driver provided by iOptron. The newest version from SiLab may not work
properly for iOptron’s hand controller.
47
Appendix F. Use a PC to Control an iOptron Mount
In general you need the followings to use a PC to control the mount,
1. Download USB2COM driver (cp2102, zip file for 8401 and 8402A)
http://www.ioptron.com/manuals/USB_2COM_Driver.zip;
2. Install USB2COM and establish the connection between the mount and the PC (see
instruction);
3. ASCOM platform (download from http://ascom-standards.org/);
4. iOptron ASCOM drive (download it from iOptron website
http://www.ioptron.com/Files/File/iOptronAscomSetupV1.02.rar); and
5. Planetarium software.
Some company integrated iOptron’s products into their planetarium software, such as
Voyage and The Sky X Pro. Therefore, an ASCOM plug-in will not be needed. Most planetarium
software can be used to control iOptron’s product via ASCOM.
Some other ASCOM drivers such as LX200 Generic ASCOM driver and AstroPhysics
GTO mount driver may also be compatible with the SmartStar
®
mount.
48
Appendix G. RS-232 Command Set
Abbreviations used:
DD or DDD degrees or day of the month depending on the context
HH hours
MM minutes or month depending on the context
MM.M minutes and tenths of minutes
s + or – sign, assumed to be + if omitted
SS seconds
SS.S seconds and tenths of seconds
YY last two digits of the year
General Telescope Information:
Command: :SG sHH#
Response: “1”
Set the offset from Greenwich mean time. The offset can be entered in signed format (12 to +12) hours.
Command: :Sg sDDD*MM:SS#
Response: “1”
Set the current longitude. The east is positive while the west is negtive.
Command: :St sDD*MM:SS
Response: “1”
Set the current latitude.
Command: :SL HH:MM:SS#
Response: “1”
Set the current local time.
Command: :SC MM/DD/YY#
Response: 32 spaces followed by “#”, followed by 32 spaces, followed by “#”
Set the current date.
Command: :GG#
Response:
East Longitude E HH:00#
West Longitude W HH:00#
Get the offset from Greenwich mean time.
Command: :Gg#
Response: sDDD*MM:SS#
Get the current longitude.
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Command: :Gt#
Response: sDD*MM:SS#
Get the current latitude.
Command: :GL#
Response: HH:MM:SS.S#
Get the current local time in 24 hour format. Overflows from 23:59:59 to
00:00:00.
Command: :GS#
Response: HH:MM:SS.S#
Get the current local sidereal time in 24 hr. format.
Command: :GR#
Response: HH:MM:SS.S#
Get the current Right Ascension of mount.
Command: :GD#
Response: sDD*MM:SS#
Get the current Declination.
Command: :GA#
Response: sDD*MM:SS#
Get the current Altitude.
Command: :GZ#
Response: sDD*MM:SS#
Get the current Azimuth.
Command: :GC#
Response: MM:DD:YY#
Get the current calendar day.
Telescope Motion
Command: :MS#
Response: “0” if command accepted,
"1Object is below horizon #" the desired object is below 0 degrees altitude. (8
trailing spaces before “#”, 32 total characters plus “#”)
Target command: Slew to the most recently defined RA and DEC coordinates in RADEC mode,
Command: :Mn# :Ms# :Me# :Mw#
Response: (none)
Command motion in the direction specified (n=north, s=south, e=east, w=west) at the
currently selected guide or centering rate. Motion will continue until a quit command is
issued.
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Command: :Qn# :Qs# :Qe# :Qw#
Response: (none)
Stop motion in the specified axis. Note that :Qn# is identical to :Qs#, and :Qe# is
identical to :Qw#. Motion is terminated only if it was not started by a slew (:MS#)
command.
Command: :Q#
Response: (none)
Motion in both axes is stopped, regardless of how the motion was invoked.
Command: :RG#
Response: (none)
Selects guide. If tracking is stopped, turns tracking on.
Command: :RC#
Response: (none)
This command sets to quit guide mode.
Command: :RCn#
Response: (none)
:RC0 # Set moving speed by N-S-E-W Keys to 16x
:RC1 # Set moving speed by N-S-E-W Keys to 64x
:RC2 # Set moving speed by N-S-E-W Keys to 256x
:RC3 # Set moving speed by N-S-E-W Keys to 512x
Command: :pS#
Response: “East#” or “West#”
This command returns the side of the pier on which the telescope is currently
positioned.
Position
Command: :CM#
Response: “Coordinates matched. #”
(there are 5 spaces between “Coordinates” and “matched”, and 8 trailing spaces
before the “#”, the total response length is 32 character plus the “#”.
Calibrate mount. Current Right Ascension and Declination become the commanded
Right Ascension and Declination. This command does the same thing as synchronize to
target.
means a GOTO must be done first.
Command: :CMR#
Response: “Coordinates matched. #”
(there are 5 spaces between “Coordinates” and “matched”, and 8 trailing spaces
before the “#”, the total response length is 32 character plus the “#”.
This command should be used after a “:MS#” command has been finished. This
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Calibrate mount. Current Right Ascension and Declination become the commanded Right
Ascension and Declination. This command synchronizes HC coordinate to commanded
coordinate. No GOTO needs to be done first.
Command: :Sr HH:MM:SS.S#
Response: “1”
Define the commanded Right Ascension, RA.
Command: :Sd sDD*MM:SS#
Response: “1”
Define the commanded Declination.
Miscellaneous
Command: :F+# :F-# :FF# :FS# :FQ#
Response: (none)
Advances (F+) or retracts (F-) focus adjust motor on the eyepiece. F+ or F- commands
commence adjustment and :FQ# stops it. If :FS# has been issued previously, then the
focus adjustment will be slow. If the :FF# command has been issued, then the
adjustment will be fast. If neither FF nor FS is specified, the power up default of FS is
assumed.
Command: :F1# :F2# :F3# :F4#
Response: (none)
Set the focus speed to 1.2,3,4, from slow to fast.
Command: :V#
Response: (current servo controller software RS232 command language
version number)
This command returns the current servo controller software RS232 command language
version.
Command: :Vs#
Response: (current servo controller software infomation)
This command returns the current servo controller software information.
Command: :STR0#,:STR1#,:STR2#
Response: ‘1’
This command sets the track rate.
0 - sidereal
1- solar
2- lunar
Command: :GTR#
Response: ‘0’,’1’,’2’
This command gets the current tracking rate.
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0 - sidereal
1 – solar
2 - lunar
Command: :SGS0#,:SGS1#,:SGS2#,:SGS3#,
Response: (none)
This command sets the guide rate.
0 – 1.0X of sidereal
1 – 0.8X of sidereal
2 – 0.6X of sidereal
3 – 0.4X of sidereal
Command: :GGS#
Response: ‘0’,’1’,2,’3’
This command gets the current guide rate.
0 – 1.0X of sidereal
1 – 0.8X of sidereal
2 – 0.6X of sidereal
3 – 0.4X of sidereal
Command: :SE?#
Response: ‘0’,’1’,
This command gets the slewing status.
‘1’ in slewing
‘0 ‘ not in slewing
Command: :GAM#
Response: ‘0’,’1’, ‘2’
This command gets the current mount type.
0 – Altitude/Azimuth type
1 – fork mount
2 – Germany equator mount
Command: :PK#"
Response: ’1’
This command parks the telescope .
Command: : STPKP0#, :STPKP1#, :STPKP2#, :STPKP3#, :STPKP4#,
Response: ’1’
These command sets the mount park position.
0 – original to north pole
1 - Left and vertical
2 - Left and horizon
3 - Right and vertical
4 - Right and horizon
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IOPTRON TWO YEAR TELESCOPE, MOUNT, AND CONTROLLER WARRANTY
A. iOptron warrants your telescope, mount, or controller to be free from defects in materials and workmanship for two years. iOptron
will repair or replace such product or part which, upon inspection by iOptron, is found to be defective in materials or workmanship.
As a condition to the obligation of iOptron to repair or replace such product, the product must be returned to iOptron together with
proof-of-purchase satisfactory to iOptron.
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receive the number to be displayed on the outside of your shipping container.
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together with a brief description of any claimed defects. Parts or product for which replacement is made shall become the property
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The customer shall be responsible for all costs of transportation and insurance, both to and from the factory of iOptron, and shall be
required to prepay such costs.
iOptron shall use reasonable efforts to repair or replace any telescope, mount, or controller covered by this warranty within thirty
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If warranty problems arise, or if you need assistance in using your telescope, mount, or controller contact:
NOTE: This warranty is valid to U.S.A. and Canadian customers who have purchased this product from an authorized iOptron
dealer in the U.S.A. or Canada or directly from iOptron. Warranty outside the U.S.A. and Canada is valid only to customers who
purchased from an iOptron Distributor or Authorized iOptron Dealer in the specific country. Please contact them for any warranty
iOptron Corporation
Customer Service Department
6X Gill Street
Woburn, MA 01801
www.ioptron.com
Tel. (866)399-4597
Fax. (781)935-2860
Monday-Friday 9AM-5PM EST
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