Bushnell 78-8840 User Manual

WITH REALVOICE™ OUTPUT

AVEC SORTIE REALVOICE™

CON SALIDA REALVOICE™

MIT REALVOICE™ SPRACHAUSGABE

CON USCITA REALVOICE™

788840, 788850, 788890 MAKSUTOVCASSEGRAIN

788831 76MM REFLECTOR

INSTRUCTION MANUAL

MANUEL D’INSTRUCTIONS

MANUAL DE INSTRUCCIONES

BEDIENUNGSANLEITUNG MANUALE DI ISTRUZIONI

788846 114MM REFLECTOR

Lit.#: 98-0433/03-10

ENJOYING YOUR NEW TELESCOPE

You may already be trying to decide what you plan to look at first, once your telescope is setup and aligned. Any bright object in 1. the night sky is a good starting point. One of the favorite starting points in astronomy is the moon. This is an object sure to please any budding astronomer or experienced veteran. When you have developed proficiency at this level, other objects become good targets. Saturn, Mars, Jupiter, and Venus are good second steps to take.

The low power eyepiece 2. (the one with the largest number printed on it) is perfect for viewing the full moon, planets, star clusters, nebulae, and even constellations. These should build your foundation. Avoid the temptation to move directly to the highest power. The low power eyepiece will give you a wider field of view, and brighter image—thus making it very easy to find your target object. However, for more detail, try bumping up in magnification to a higher power eyepiece on some of these objects. During calm and crisp nights, the light/dark separation line on the moon (called the “Terminator”) is marvelous at high power. You can see mountains, ridges and craters jump out at you due to the highlights. Similarly, you can move up to higher magnifications on the planets and nebulae. Star clusters and individual stars are best viewed through the low power no matter what.

The recurring astronomical theater we call the night sky is an ever-changing billboard. In other words, the same movie does not play 3. all the time. Rather, the positions of the stars change not only hourly as they seem to rise and set, but also throughout the year. As the earth orbits the sun our perspective on the stars changes on a yearly cycle about that orbit. The reason the sky seems to move daily just as the sun and the moon “move” across our sky is that the earth is rotating about its axis. As a result you may notice that after a few minutes or a few seconds depending on what power you are viewing at, the objects in your telescope will move. At higher magnifications especially, you will notice that the moon or Jupiter will “race” right out of the field of view. To compensate, just move your telescope to “track” it in the necessary path.

ENGLISH

HELPFUL HINTS

1. Your telescope is a very sensitive instrument. For best results and fewer vibrations set your telescope up on a level location on the ground rather than your concrete driveway or your wooden deck. This will provide a more stable foundation for viewing, especially if you’ve drawn a crowd with your new telescope.

2. If possible, view from a location that has relatively few lights. This will allow you to see much fainter objects. You’d be surprised how much more you’ll see from your local lake or park when compared to a backyard in the city.

3. Using your telescope out a window is NEVER recommended.

4. View objects that are high in the sky if possible. Waiting until the object rises well above the horizon will provide a brighter and crisper image. Objects on the horizon are viewed through several layers of earth’s atmosphere. Ever wonder why the moon appears orange as it sets on the horizon? It’s because you are looking through a considerable more amount of atmosphere than you would directly overhead. (Note: If objects high in the sky are distorted or wavy, you are probably viewing on a very humid night.) During nights of unstable atmosphere, viewing through a telescope can be frustrating if not impossible. Astronomers refer to crisp, clear nights as nights of “good seeing.”

WHERE DO I START?

Your Bushnell telescope can bring the wonders of the universe to your eye. While this manual is intended to assist you in the set-up and basic use of this instrument, it does not cover everything you might like to know about astronomy. Although Northstar will give a respectable tour of the night sky, it is recommended you get a very simple star chart and a flashlight with a red bulb or red cellophane over the end. For objects other than stars and constellations, a basic guide to astronomy is a must. But, some of the standbys that you can see are:

The Moon—a wonderful view of our lunar neighbor can be enjoyed with any

magnification. Try viewing at different phases of the moon. Lunar highlands, lunar maria (lowlands called “seas” for their dark coloration), craters, ridges and mountains will astound you.

Saturn—even at the lowest power you should be able to see Saturn’s rings and moons. This is one of the most satisfying objects in the sky to see simply because it looks like it does in pictures. Imagine seeing what you’ve seen in textbooks or NASA images from your backyard!

Jupiter—the largest planet in our solar system is spectacular. Most noted features are its dark stripes or bands both above and below its equator. These are the north and south equatorial belts. Also interesting are Jupiter’s four major moons. Pay close attention to their positions from night to night. They appear to be lined up on either side of Jupiter.

Mars—The Great Red Planet appears as a reddish-orange disk. Look at different times of the year and try to catch a glimpse of the white polar ice caps.

Venus—just like the moon, Venus changes phases from month to month. At times Venus appears brilliantly in the night sky, just as if you were looking at a distant crescent moon.

Nebulae—The Great Orion Nebula is a very well known night sky object. This and many others are brought to you by this telescope.

Star Clusters—

Galaxies—One of the greatest and most interesting galaxies is our neighbor the

Andromeda Galaxy. Enjoy this and many others.

View millions of stars densely packed in a cluster that resembles a ball.

Congratulations on the purchase of your Bushnell Northstar Goto Telescope with Real Voice Output! This is the first telescope ever created that actually speaks to you to educate you about the night sky. Consider this feature as your personal astronomy assistant.

After reading through this manual and preparing for your observing session as outlined in these pages you can start enjoying the Real Voice Output feature by doing the following:

To activate your telescope, simply turn it on! The Real Voice Output feature is built in to the remote • control handset.

Along the way the telescope will speak various helpful comments during the alignment process. • Once aligned, the Real Voice Output feature will really shine anytime the enter key is depressed when an object name or number is displayed at the bottom right of the LCD viewscreen. That object description will be spoken to you as you follow along with the scrolling text description.

If at anytime you wish to disable the speaking feature, you can cancel the speech by pressing the • “Back” button on the remote control keypad.

It is our sincere hope that you will enjoy this telescope for years to come!

NEVER LOOK DIRECTLY AT THE SUN

WITH YOUR TELESCOPE

PERMANENT DAMAGE TO YOUR EYES

MAY OCCUR

PARTS DIAGRAMS

788831 / 788846

Telescope Parts Diagram

1. Red Dot Finderscope

2. 1.25" Format Eyepiece (2 included)

3. Rack and Pinion Focusing Mechanism

4. Accessory Tray Brace

5. Quick-Release Tripod Leg Lever

788840, 788850,

788890

6. Quick-Release Accessory Tray

7. Remote Handset Computer Controller

8. Main Telescope Tube

9. Quick-Release Adjustable Aluminum Tripod

QUICK ASSEMBLY DIAGRAM

788831 / 788846 / 788840

788850 / 788890

788840, 788850, 788890

788831 / 788846

PARTS LIST

 • AdjustableAluminumTripodAssembly

(Pre-assembled to Northstar Computerized Star Locator Base)

 • QuickReleaseAccessory Tray

• Northstar Telescope with finger attachment nuts

 • RedDotFinderscope

 • 2Eyepieces

 • BarlowLens(ReflectorsOnly)

 • 90˚ErectingPrism(MaksutovOnly)

DETAILED ASSEMBLY

No tools are required for assembly of your telescope.

Remove all components from the carton and identify all components. It is a good idea to lay all the parts out in front of you before assembly. Since your telescope is a precision optical system the parts require careful handling—particularly the onboard computer, telescope, eyepieces, and various accessory lenses.

SET UP TRIPOD AND ACCESSORY TRAY

1. Stand Northstar Computerized Star Locator Assembly and attached tripod legs in the upright position. Spread tripod legs to a comfortable distance.

2. Fold down the accessory tray braces and place the Quick Release Accessory Tray on top of braces.

(See Quick Assembly Diagram #1)

3. Turn accessory tray until it snaps into place.

4. Adjust tripod leg height to suit by opening tripod leg lever and extending tripod legs to desired height. Clamp Tripod Leg lever closed when complete.

ATTACH TELESCOPE TUBE (See Quick Assembly Diagram #2)

1. Locate Main Telescope Tube.

2. Remove Telescope Tube Thumb Nuts from side of Telescope Tube (78-8831 and 78-8846 only). For 78-8890, back out silver lug screw on Telescope Mount top.

3. Position Main Telescope Tube Attachment Bolts through Telescope Tube Bracket at the top of the Northstar Computerized

Star Locator Assembly (78-8831 and 78-8846 only). For 78-8890, slide black telescope tube bracket into telescope mount

receiver. Make sure telescope is pointing in the correction direction. (Logo on telescope tube should be right-side up.)

4. Reattach Telescope Tube Thumb Nuts to Main Telescope Tube Attachment Bolts once Main Telescope Tube and Northstar Computerized Star Locator Assembly are assembled together (78-8831 and 78-8846 only). For 78-8890, tighten silver lug screw on Telescope Mount top into desired depression on the black telescope tube bracket.

ATTACH FINAL TELESCOPE ACCESSORIES

1. Locate Red Dot Finderscope.

For Reflector Telescopes: Remove Finderscope attachment nuts from Main Telescope Tube. Place Finderscope Assembly over Finderscope Attachment Bolts and reattach Finderscope thumb nuts to Finderscope Mount Bolts.

NOTE: The large end of the finderscope should face the open end of telescope tube.

2. Attach Low Power Eyepiece.

For Reflector Telescope Models: Insert lowest power eyepiece in the focusing mechanism by backing out eyepiece set screw and inserting eyepiece fully.

3. Tighten all set screws to secure accessories.

SELECTING AN EYEPIECE

You should always start viewing with the lowest power eyepiece, which in this case is the 20 mm lens. Note: the base power of each eyepiece is determined by the focal length of the telescope objective lens. A formula can be used to determine the power of each eyepiece: telescope OBJECTIVE lens focal length divided by EYEPIECE focal length = MAGNIFICATION (e.g. Using the 20 mm lens, a sample calculation could look like this: 750 mm / 20 = 38x or 38 power. Telescope models will vary in focal length.)

(Reflectors Only)

Included with this telescope is a Barlow lens. Barlow lenses are used to double or triple the power of your telescope. Place your Barlow between the focusing tube and the eyepiece. Using the example above, your 3x Barlow lens would give you a total power of 114x or 114 power. (38 x 3 = 114x or 114 power). The magnification calculation would look like this: 750 mm /20mm = 38 power. 38 power x 3=114 power.

DETAILED ASSEMBLY CONTINUED

FOCUSING TELESCOPE

1. After selecting the desired eyepiece, aim main telescope tube at a land-based target at least 200 yards away (e.g. a telephone pole or building).

2. Fully extend Focusing Tube by turning Rack and Pinion Focusing Mechanism.

3. While looking through selected eyepiece (in this case the 20 mm), slowly retract Focusing Tube by turning Rack and Pinion Focusing Mechanism until object comes into focus.

ATTACH REMOTE COMPUTER CONTROLLER AND BATTERY

1. Locate Remote Computer Controller and coil cord.

2. Locate Battery Door on Northstar Computerized Star Locator Base.

3. Remove Battery Door and insert one 9V battery.

4. Replace Battery Door.

5. Attach Remote Computer Controller with coil cord to Northstar Computerized Star Locator Base.

ALIGNING FINDERSCOPE

Look through Main Telescope Tube and establish a well-defined target. (see "Focusing Telescope" section)

Remove plastic insulator from between Red Dot Finderscope battery and battery clip.

Turn Red Dot Finderscope on.

Looking through Red Dot Finderscope, turn adjustment wheels until the red dot is precisely centered on the same object already centered in Main Telescope Tube’s field of view.

Now, objects located first with the Red Dot Finderscope will be centered in the field of view of the main telescope.

NEVER LOOK DIRECTLY AT THE SUN

WITH YOUR TELESCOPE

PERMANENT DAMAGE TO YOUR EYES

MAY OCCUR

NORTHSTAR COMPUTER HANDSET INTERFACE DIAGRAM

1. On/Off Button (in base/handset cradle-see photo)

2. Back Button

3. Enter Button

4. Scroll Up Button

5. Scroll Down Button

6. LCD Display

7. “GO” Button

8. Motorized Movement Buttons (set of 4)

9. Battery Door (in base/handset cradle-see

photo)

10. Handset Cable Jack

Inside Mounting Base

(cradle underneath handset)

10.

BUTTON FUNCTIONS

ALL BUTTONS ARE ILLUMINATED FOR NIGHTTIME USE.

On/Off Button: The On/Off Button will turn the Northstar Computerized Star Locator on and off. This button flashes or strobes on and off during normal use. To turn the unit off, simply depress and hold the On/Off button for three seconds and release. (Note: The Northstar Computerized Star Locator will automatically turn itself off after 10 minutes of inactivity.)

Back Button: This button functions to navigate to the previous level within the operating framework and/or back to the previous level of input. If at anytime you wish to disable the speaking feature, you can cancel the speech by pressing the “Back” button on the remote control keypad.

Enter Button: This button functions to select certain menu choices. By pressing the ENTER button Northstar will advance to the selected level. When an object name or number is listed on the screen, the ENTER button can also be pressed to hear a spoken description and display a scrolling text description of the object.

Scroll Up Button: This button functions to scroll up through various menus within Northstar. Anytime you encounter a

blinking text/number option, the scroll button will display the various choices within that menu. (Note: To select an option that you have scrolled to, just press the ENTER button.)

Scroll Down Button: This button functions to scroll down through various menus within Northstar. Anytime you encounter a blinking text/number option, the scroll button will display the various choices within that menu. (Note: To select an option that you have scrolled to, just press the ENTER button.)

BUTTON FUNCTIONS (Continued)

“GO” Button: The GO button will automatically center the telescope on any object displayed on the LCD display. By pushing the “GO” button, the telescope will automatically find and follow the selected object until another object is selected and the “GO” button is pushed again.

Motorized Movement Buttons: These four multi-directional buttons will allow the user to override the tracking system and move the telescope utilizing the motors manually to another desired location. The longer these buttons are depressed, the faster the Northstar will move until it reaches its maximum speed.

LCD DISPLAY

The Liquid Crystal Display (LCD) is a two-line, sixteen character display. The LCD is illuminated for use during nighttime viewing just like the buttons.

HANDSET MODES

Explore: The Explore Mode of Northstar provides the ability to explore various astronomical objects categorized by object type. These objects would fall under one or more of the following types of objects: Deep Sky, Planets, Constellations, and Stars. Each of these subheadings would also have subcategories of objects beneath their menu structure. (See Menu Tree for full list of menu functions and options.)

Sky Tour: The Sky Tour Mode of Northstar provides the ability to take a quick tour of the best and brightest objects for any given month of the year. If the date has been input into the system (see Step 3 in "Aligning Northstar for the First

Time"), the Sky Tour Mode will automatically default to that month. Objects can be chosen by using the scroll up or down arrows and pressing ENTER. To find out more information about any given object press the ENTER button while

that object is displayed to see the scrolling text message.

Telescope: The Telescope Mode of Northstar provides real-time data on where the telescope is pointing. Astronomical Coordinates for Right Ascension (RA) and Declination (DEC) as well as Altitude (ALT) and Azimuth (AZ) are displayed simultaneously. In addition, in the lower right-hand corner will be the abbreviation for the current constellation that the telescope is pointed at.

Identify: The Identify Mode of Northstar provides the ability to identify any object within your telescope field of view Subcategories for different classes of identifiable objects are included as well as an Identify Any option.

Align Earth: The Align Earth Mode of Northstar provides the ability to easily align your telescope utilizing common information non-astronomers would readily know. By entering simple information such as time, date, city, etc. a first time telescope user can begin exploring the immense Northstar database of astronomical objects within minutes.

Align Star: The Align Star Mode of Northstar provides the ability to align your telescope utilizing some astronomical knowledge. By knowing where two stars are located in the sky, a novice user can circumvent the city, date, and time input and quickly start utilizing the Northstar database to locate astronomical objects with excellent accuracy.

Align Object: The Align Object Mode of Northstar provides the ability to refine your telescope alignment during the middle of your observing session. This might come in very handy if the family dog has just bumped the telescope out of alignment. By using this mode you can center the telescope on any known object and select align object to quickly recalibrate the Northstar alignment allowing continued enjoyment for the duration of the evening.

MENU TREE

ALIGNING NORTHSTAR FOR THE FIRST TIME

(NOTE: Make certain that the telescope is set up on a level surface.)

STEP 1:

Before turning the telescope on, remove the remote control handset. When you turn the telescope on, a spoken and scrolling welcome message will be heard and seen as:

BUSHNELL NORTHSTAR Vx.x (the version number of the operating software)

Following this message, the telescope will execute a diagnostic check and level the telescope tube in relation to the telescope mount.

Then the default menu will appear:

SELECT MODE ALIGN EARTH 56

The ALIGN EARTH mode assumes that even if the telescope user is a first time user and does not know anything about astronomy that they can be successful aligning the telescope in a few simple steps. Another option is the "ALIGN STAR" mode which requires a bit more experience but yields somewhat more accurate results-this will be described later.

The ALIGN EARTH option is flashing.

Press ENTER to choose the ALIGN EARTH option.

NOTE: ANY FLASHING ITEM ON THE DISPLAY IS A MENU CHOICE. OTHER CHOICES ARE AVAILABLE BY USING THE SCROLL UP OR SCROLL DOWN BUTTONS.

STEP 2: SET THE TIME

By using the UP and DOWN buttons and the ENTER button, the time can easily be set as well as the time zone. Each flashing option will need to be changed (using UP/DOWN) to read the appropriate number. Once the appropriate number is displayed, accept the number by pressing ENTER. Then set the next flashing option until the time (24 hr format) and time zone are set. Note: "_ST" indicates Standard Time and "_DT" indicates Daylight savings Time.

STEP 3: SET THE DATE

Again by using the SCROLL UP and SCROLL DOWN buttons and the ENTER button, the date can easily be set. Each flashing option will need to be changed to read the appropriate number or month. Once the appropriate number is displayed, accept the number by pressing ENTER. Then set the next flashing option until the day, month and year are set.

STEP 4: SET THE LOCATION

The next screen will display:

ALIGN EARTH CITY 56

CITY will be flashing. Press the ENTER button, the display will change to:

COUNTRY U.S.A. 56

The country will be flashing.

ALIGNING NORTHSTAR FOR THE FIRST TIME (Continued)

Again by using the SCROLL UP and SCROLL DOWN buttons and the ENTER button, the COUNTRY can be chosen. When the appropriate Country is found and the ENTER button is pushed, choose the city that you are closest to with the UP/ DOWN buttons, then press ENTER when it is displayed.

NOTE: CHOOSE THE CITY CLOSEST TO YOUR VIEWING LOCATION. THIS IS NOT A CRITICAL STEP AND THE ALIGNMENT WILL BE REFINED AUTOMATICALLY AS WE PROGRESS.

STEP 5: CHOOSE AND CENTER A STAR

After your CITY has been entered, the next scrolling message reads CENTER STAR 2 THEN PRESS ENTER

This means that you will need to choose the name of a star (this will be your "guide star") from the list on the display, then position that star in the center of the viewing field as you look through the telescope (by moving it by hand or via the motor buttons), and then press ENTER.

You may be wondering why the message refers to "STAR 2"-why not "STAR 1"? The reason is that we are using the faster, easier ALIGN EARTH mode, which only requires you to locate and center one star (unlike the ALIGN STAR mode, which requires using two stars). When you entered the time, date, country and city, that basically took the place of finding "STAR 1"-you're using earth based information in its place.

If you are located in the earth's northern hemisphere, the easiest star for a beginner to find and use is probably one of the brighter ones in the familiar "Big Dipper" as shown below. As you may already know, the stars that form the Big Dipper are located near Polaris, also known as the North Star, which is the star at or near the center of the night sky, appearing directly overhead. (Note that the Big Dipper may appear upside down in the sky or in positions other than the one shown below at different times of the year). An imaginary line can be traced through Merak and Dubhe in the Big Dipper directly to Polaris (it's about 5 times farther away than the distance between those two "pointer stars").

To Polaris

(North Star)

ALIGNING NORTHSTAR FOR THE FIRST TIME (Continued)

Merak, Dubhe and Mizar are bright and relatively easy to find, so you might try one of those. If you are located in the earth's southern hemisphere where the "Big Dipper" is not visible, you can of course still use "ALIGN EARTH" mode, selecting any star you like from the list of visible stars in your area shown on the telescope's display. The star charts towards the back of this manual may also be helpful in choosing a star.

Use the UP/DOWN scroll buttons to find the name of the star you've chosen on the display. The display will also show you two numbers with vertical and horizontal arrows, indicating roughly which direction and by how much the telescope needs to be moved to place that star in the center of the telescope's view. If you press the "GO" button, the telescope's motors will move it into a position that is at least "in the ballpark"-remember that you have not finished the alignment process yet, but this may still be helpful to get you in the general area of the sky. The numbers by the position arrows should be closer to "0" now (when they get below 10, the arrows act as "decimal points", displaying each number with greater precision-"8 arrow 4" indicates 8.4). Now you can use the red dot finder scope to aim the telescope more precisely at the star you chose (one within the Big Dipper). Next, looking through the eyepiece, position that star right in the center of the viewing field by moving the telescope by hand or using the motorized movement buttons). Once you have your star centered, press ENTER.

After this step is completed, you will see a display that reads:

ALIGN COMPLETE RATING *****

(Note: The more stars that appear on the second line of the display the better, up to 5. If the rating is very low, you may need to find and center a different star to better refine the alignment)

STEP 6: EXPLORE THE NIGHT SKY!

After EARTH ALIGN, the display will then read:

SELECT MODE EXPLORE 56

Select EXPLORE by pressing ENTER. SCROLL UP and DOWN to see what flashing menu choices you have. Choose PLANET. These are the most interesting. Even if you are a first time telescope user, PLANET objects can be very

exciting.

Press ENTER when the display reads:

EXPLORE PLANET

This will take you into a list of named PLANET objects. By using the SCROLL UP or SCROLL DOWN buttons, you can explore several items in the object list.

PLANET JUPITER 56

Press ENTER to choose the PLANET you wish to view. The display will then be (the numbers indicate the object's position in degrees of azimuth and altitude) :

PLANET 3120 552 JUPITER

NOTE: IF AN OBJECT IS CURRENTLY LOCATED BELOW THE HORIZON (WHERE YOU WOULD BE UNABLE TO SEE IT), THE DISPLAY WILL PERIODICALLY DISPLAY THE WORD “HORIZON.”

SCROLL UP or SCROLL DOWN to see other PLANETS in the list. Notice the display shows you directions to each object. But what if you are a first time user wanting to find out more about the object? Wouldn’t it be nice to know what the object is before moving the telescope?

ALIGNING NORTHSTAR FOR THE FIRST TIME (Continued)

PRESS ENTER when:

PLANET 3120 552 JUPITER

or any other PLANET item is displayed. You will see a scrolling message telling you the coordinates for the object, how big it is, what its proper name is, what constellation it is in, and a brief description of what the object is. For JUPITER it reads:

JUPITER fifth planet from sun. Largest planet in solar system. 16 moons. Orbit is 11.86 years. Diameter 143,000 km. Named for roman king of gods.

Now imagine that you are a parent trying to impress your children (or vice versa). Ten minutes into your first observing session you are already learning astronomical objects. This is a great educational tool !!!!

To find the object, just press the “GO” button and that object will be right in the telescope’s eyepiece!

By pressing the BACK button, you return to the previous level each time the button is pressed. Press the button two times and you are back at the main level menu. The display will read:

SELECT MODE EXPLORE 56

SCROLL UP or SCROLL DOWN to select

SELECT MODE SKY TOUR 56.

Press ENTER.

This mode will take you through the best and brightest objects for each month. If you have done the ALIGN EARTH alignment and entered the date, it will automatically take you to the current month. Don’t know what some of these obscure objects and abbreviations mean? Just press the ENTER key for more information.

Press the BACK button until you get back to the main menu:

SELECT MODE SKY TOUR 56.

SCROLL UP or SCROLL DOWN until the display reads:

SELECT MODE IDENTIFY 56

PRESS ENTER

This mode will default to the level

IDENTIFY ANY

By selecting this option with the ENTER key, it will IDENTIFY the object that you are currently viewing OR the closest object to where your telescope is currently pointed. You also have the options to choose other types of IDENTIFY menus. These will IDENTIFY the closest CLUSTERS, NEBULAS, etc. to your current telescope position.

ALIGNING NORTHSTAR FOR THE FIRST TIME / ALIGN STAR MODE

To select the final mode press ENTER at the display:

SELECT MODE TELESCOPE 56

The display reads something like:

RA18:53 DEC+38.7 AZ280 ALT+62 LYR

The TELESCOPE mode gives you dynamic real-time information on your telescope’s current position in terms of astronomical coordinates. Play around with this mode by moving the telescope around. Notice the three letter abbreviation in the lower right portion of the display. This dynamically displays the current CONSTELLATION that the telescope is pointing at. These names are abbreviated in this mode. Definitions for the abbreviations are listed in an index at the back of the manual.

OPTIONAL: USING ALIGN STAR MODE Two Star Alignment Method

This mode requires you to locate and center two stars instead of just one, so it may take a little more time and experience. However, it will provide more accurate, precise operation and guidance as you continue to use your NorthStar telescope. It's also useful if you are in a remote location and can't find a nearby city from the list in ALIGN EARTH mode.

To use the ALIGN STAR mode, after you turn on the telescope's power and the SELECT MODE message appears on the display after the welcome message, press the DOWN button to select ALIGN STAR. Press ENTER. The message changes to ALIGN STAR 1.

Using the star charts on the next pages for reference (there is a chart for each of the four seasons, in both northern and southern hemispheres), choose a star you think you will be able to find in the night sky (perhaps within one of the constellation groups), and use the UP/DOWN buttons to find it's name on the displayed list. The display also shows two numbers with vertical and horizontal position arrows. Pressing "GO" will move the telescope into a position roughly near the star. Now use the red dot finder scope to aim the telescope more precisely at the star you chose. Next, looking through the eyepiece, position that star right in the center of the viewing field by moving the telescope by hand or using the motorized movement buttons).

Once you have your first star centered, press ENTER. The display changes to "ALIGN STAR 2". Select another star from the list (again using the star charts for reference) and repeat the process for the second star. After this step is completed, you will see a display that reads:

ALIGN COMPLETE RATING *****

(Note: The more stars that appear on the second line of the display the better, up to 5)

The telescope is now aligned and ready to use. The display will again read SELECT MODE. Please refer to the directions and suggestions in Step 6: "Explore the Night Sky". For example, you might start off selecting the EXPLORE mode, then selecting PLANET if you are new to the world of astronomy.

STAR CHARTS

NORTHERN HEMISPHERE / SPRING

STAR CHARTS

NORTHERN HEMISPHERE / SUMMER

STAR CHARTS

NORTHERN HEMISPHERE / FALL

STAR CHARTS

NORTHERN HEMISPHERE / WINTER

STAR CHARTS

SOUTHERN HEMISPHERE / SPRING

STAR CHARTS

SOUTHERN HEMISPHERE / SUMMER

STAR CHARTS

SOUTHERN HEMISPHERE / FALL

STAR CHARTS

SOUTHERN HEMISPHERE / WINTER

Constellation Abbreviations

Andromeda (And) Antila (Ant) Apus (Aps) Aquarius (Aqr) Aquila (Aql) Ara (Ara) Aries (Ari) Auriga (Aur) Bootes (Boo) Caelum (Cae) Camelopardis (Cam) Cancer (Cnc) Canes Venatici (CVn) Canis Major (CMa) Canis Minor (CMi) Capricornus (Cap) Carina (Car) Cassiopeia (Cas) Centaurus (Cen) Cepheus (Cep) Cetus (Cet) Chameleon (Cha) Circinus (Cir) Columbia (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)

Lacerta (Lac) Leo (Leo) Leo Minor (LMi) Lepus (Lep) Libra (Lib) Lupus (Lup) Lynx (Lyn) Lyra (Lyr) Mensa (Men) Microscopium (Mic) Monoceros (Mon) Musca (Mus) Norma (Nor) Octans (Oct) Ophiuchus (Oph) Orion (Ori) Pavo (Pav) Pegasus (Peg) Perseus (Per) Phoenix (Phe) Pictor (Pic) Pisces (Psc) Piscis Austrinus (PsA) Puppis (Pup) Pyxis (Pyx) Reticulum (Ret) Sagitta (Sge) Sagittarius (Sgr) Scorpius (Sco) Sculptor (Scl) Scutum (Sct) Serpens (Ser) Sextans (Sex) Taurus (Tau) Telescopium (Tel) Triangulum (Tri) Triangulum Australe (TrA) Tucana (Tuc) Ursa Major (UMa) Ursa Minor (UMi) Vela (Vel) Virgo (Vir) Volcans (Vol) Vulpecula (Vul)

Additional Reference

For sake of space, we have chosen not to include the entire list of the 20,000 celestial objects that are programmed into your NorthStar telescope's database in this manual. However, the complete list of stars and Messier objects that are included in the telescope's database are available online at www.bushnell.com/manuals/telescopes for your reference.

WARRANTY / REPAIR

TELESCOPE LIFETIME LIMITED WARRANTY

WARRANTY / REPAIR

Your Bushnell lifetime of the original owner. The Lifetime Limited Warranty is an expression of our confidence in the materials and mechanical workmanship of our products and is your assurance of a lifetime of dependable service.

If your telescope contains electrical components, these components are warranted to be free of defects in materials and workmanship for two years after the date of purchase.

In the event of a defect under this warranty, we will, at our option, repair or replace the product, provided that you return the product postage prepaid. This warranty does not cover damages caused by misuse, improper handling, installation, or maintenance provided by someone other than a Bushnell Authorized Service Department.

Any return made under this warranty must be accompanied by the items listed below:

1) A check/money order in the amount of $15.00 to cover the cost of postage and handling

2) Name and address for product return

3) An explanation of the defect

4) Proof of Date Purchased

5) Product should be well packed in a sturdy outside shipping carton, to prevent damage in transit, with return postage prepaid to the address listed below:

IN U.S.A. Send To: IN CANADA Send To:

Bushnell Outdoor Products Bushnell Outdoor Products Attn.: Repairs Attn.: Repairs 8500 Marshall Drive 25A East Pearce Street, Unit 1 Lenexa, Kansas 66214 Richmond Hill, Ontario L4B 2M9

telescope is warranted to be free of defects in materials and workmanship for the

For products purchased outside the United States or Canada please contact your local dealer for applicable warranty information. In Europe you may also contact Bushnell at: Bushnell Germany GmbH European Service Centre Mathias-Brüggen-Str. 80 D-50827 Köln GERMANY Tel: +49 221 995568-0 Fax: +49 221 995568-20

This warranty gives you specific legal rights.

You may have other rights which vary from country to country.

PROFITEZ DE VOTRE NOUVEAU TÉLESCOPE

Vous pouvez désormais décider ce que vous prévoyez d’observer en premier lieu, une fois votre télescope réglé et aligné. N’importe 1. quel objet brillant du ciel nocturne est un bon point de départ. L’un des points de départ préférés en astronomie est la Lune. C’est un objet intéressant pour l’astronome débutant aussi bien que pour les astronomes expérimentés. Lorsque vous vous êtes exercés à ce niveau, d’autres objets deviennent de bonnes cibles. Saturne, Mars, Jupiter et Vénus sont intéressantes en seconde étape..

L’oculaire à faible grossissement (celui portant la valeur la plus élevée) est parfait pour observer la pleine lune, les planètes, les amas 2. d’étoiles, les nébuleuses et même les constellations. Ces objets constituent votre base. Toutefois, pour voir plus de détails, essayez d’utiliser des oculaires à plus fort grossissement sur certains de ces objets. Durant les nuits calmes et vives, la ligne de séparation des parties éclairée et obscure de la Lune (appelée « Terminateur ») est merveilleuse à fort grossissement. Les montagnes, crêtes et cratères paraissent avec un fort relief à cause de la mise en lumière. De manière similaire, vous pouvez utiliser de plus forts grossissements sur les planètes et nébuleuses. Quant aux amas d’étoiles et aux étoiles individuelles, la meilleure observation s’effectue toujours à faible grossissement.

Le théâtre astronomique renouvelé que nous appelons le ciel nocturne est un écran géant toujours changeant. Autrement dit, ce n’est 3. pas toujours le même film qui repasse. Bien au contraire, les positions des étoiles changent non seulement d’heure en heure alors qu’elles semblent se lever et se coucher, mais aussi tout au long de l’année. À mesure que la Terre tourne autour du Soleil, notre vue des étoiles change sur un cycle annuel, selon cette orbite. La raison pour laquelle le ciel semble se déplacer chaque jour, tout comme le Soleil et la Lune « se déplacent » dans le ciel, c’est que la Terre tourne autour de son axe. C’est ainsi que vous pouvez remarquer qu’au bout de quelques minutes ou quelques secondes, suivant le grossissement utilisé, les objets se déplacent dans le télescope. Aux forts grossissements surtout, vous remarquerez que la Lune ou Jupiter « courent » et sortent du champ rapidement. Pour compenser, déplacez simplement le télescope pour qu’il suive sa trajectoire.

FRANçAIS

CONSEILS UTILES

Le télescope est un instrument très sensible. Pour obtenir les meilleurs résultats et le 1. moins de vibrations, installez le télescope sur un endroit plat, sur le sol plutôt que sur une surface en béton ou une plate-forme en bois. Cela fournira une base plus stable pour l’observation, surtout si votre nouveau télescope a attiré une foule.

Si possible, observez à partir d’un endroit comportant relativement peu de lumière. 2. Vous pourrez ainsi voir des objets d’une luminosité plus faible. Vous serez surpris(e) de constater que vous pouvez voir bien plus d’objets célestes à partir d’un lac ou d’un parc local qu’à partir d’un jardin situé en ville.

Il N’est JAMAIS recommandé d’observer avec le télescope à partir d’une fenêtre.3.

Autant que possible, observez les objets qui sont hauts dans le ciel. Attendez que l’objet 4. monte bien au-dessus de l’horizon pour obtenir une image plus brillante et plus nette. Les objets situés à l’horizon sont aperçus à travers plusieurs couches de l’atmosphère terrestre. Vous êtesvous jamais demandé pourquoi la Lune paraît orange lorsqu’elle se couche à l’horizon? C’est parce que vous la regardez à travers une quantité d’atmosphère bien plus grande qu’il n’y en a directement au-dessus. (Remarque: Si les objets hauts dans le ciel paraissent déformés ou ondulés, la nuit est probablement très humide). Durant les nuits où l’atmosphère est instable, l’observation avec un télescope peut être dicile sinon impossible. Les astronomes parlent des nuits vives et claires comme des nuits de “bonne observation”.

PAR QUOI COMMENCER?

Votre télescope de Bushnell peut révéler à vos yeux les merveilles de l’univers. Bien que ce manuel soit conçu pour vous aider à installer et à utiliser cet instrument simplement, il ne couvre pas tout ce que vous aimeriez savoir sur l’astronomie. Même si Northstar donne une bonne vue d’ensemble du ciel nocturne, il est recommandé de se procurer une carte très simple des étoiles et une lampe de poche avec une ampoule rouge ou recouverte de cellophane rouge à l’extrémité. Pour les objets autres que les étoiles et constellations, il est nécessaire d’avoir un guide de base d’astronomie. Vous trouverez les sources recommandées sur notre site Internet à: www.bushnell.com. Vous y trouverez également les événements du ciel actuels et les suggestions d’observation. Mais, parmi les éléments principaux que vous pouvez voir, il y a :

La Lune—une vue magnifique de notre voisine s’obtient à n’importe quel grossissement.

Essayez d’observer ses différentes phases. Les montagnes lunaires, les mers lunaires (étendues basses ainsi appelées à cause de leur couleur sombre), les cratères, les crêtes vous étonneront.

Saturne—même au grossissement le plus faible, vous devriez pouvoir voir ses anneaux et ses lunes. C’est l’un des objets les plus intéressants du ciel à observer car il ressemble vraiment à sa représentation sur les images. Imaginez que vous pouvez voir depuis votre jardin ce que vous avez vu dans des livres ou sur des images de la NASA !

Jupiter—la planète la plus grosse de notre système solaire est spectaculaire. Ses traits caractéristiques sont ses rayures ou bandes sombres au-dessus et au-dessous de son équateur. Ce sont les ceintures équatoriales du nord et du sud. Les quatre lunes principales de Jupiter sont aussi intéressantes. Remarquez leurs différentes positions une nuit après l’autre. Elles semblent alignées de chaque côté de Jupiter.

Mars—La grande planète rouge apparaît comme un disque rouge orangé. Observez-la à différents moments de l’année pour essayer d’apercevoir les chapeaux de glace polaire blancs.

Vénus—tout comme la Lune, Vénus change de phases d’un mois à l’autre. Par moments, elle est très brillante dans le ciel nocturne, comme si l’on regardait une lune en croissant distante.

Nébuleuses—La grande nébuleuse d’Orion est un objet très connu du ciel nocturne. Vous pourrez voir celle-ci et bien d’autres grâce à ce télescope.

Amas d’étoiles—Regardez des millions d’étoiles groupées de manière dense en un amas qui ressemble à une boule.

Galaxies—L’une des galaxies les plus grandes et les plus intéressantes est notre voisine la galaxie d’Andromède. Vous l’aimerez ainsi que bien d’autres.

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