Meade 114EQ-AR User Manual

MEADE INSTRUCTION MANUAL
114mm | 4.5" Equatorial Reflecting Telescope
114EQ-AR
www.meade.com
Meade114EQAR 3/28/07 9:52 AM Page 1
WARNING!
Never use a Meade®Telescope to look at the Sun! Looking at or near the Sun will cause instant and irreversible damage to your eye. Eye damage is often painless, so there is no warning to the observer that damage has occurred until it is too late. Do not point the telescope at or near the Sun. Do not look through the telescope or SmartFinder™as it is moving. Children should always have adult supervision while observing.
Meade114EQAR 3/28/07 9:52 AM Page 2
INTRODUCTION
Your telescope is an excellent beginner’s instrument, and is designed to observe objects in the sky. It can be your personal window on the universe.
The telescope is shipped with the following parts:
• Optical tube
• Aluminum tripod with an accessory tray
• Two 1.25" eyepieces: MA25mm (28X), MH9mm (78X)
• Red dot viewfinder with bracket
• Telescope mount
• Hardware used in the assembly:
The tube has a focal length of 900mm, and its reflective mirror has a diameter of 114mm. The lens diameter is one of the most important pieces of information about the telescope. The size of the primary mirror determines how much detail you will be able to see in your telescope. The focal length information will help later on to calculate magnification.
Setting up your telescope involves these simple steps:
• Assemble your tripod
• Attach the accessory tray
• Attach the red dot viewfinder
• Attach the eyepiece
• Attach the counterweight
• Prepare mount
• Attach the optical tube to the mount
Study the the picture on the next page and become acquainted with the parts of your telescope. Then proceed to “Assemble your Tripod.”
1
Meade114EQAR 3/28/07 9:52 AM Page 3
FIGURE 1
2
Inset C
Inset B
Inset A
1. Tripod legs
2. Equatorial Mount
3. Right ascension control cable
4. Declination control cable
5. Counterweights
6. Counterweight shaft
7. Counterweight lock knobs
8. Counterweight safety washer
9. Latitude adjustment lock
10. Polar axis (see Fig. 5)
11. Latitude adjustment knob
12. Main optical tube (OTA)
13. Optical tube saddle plate (see Fig. 5)
14. Cradle rings
15. Cradle ring lock knobs
16. Red dot viewfinder bracket mounting
thumbscrews (see Inset B)
17. Focuser
18. Focuser thumbscrew
19. Eyepiece
20. Red dot viewfinder bracket
(see Inset B)
21. Declination axis (see Fig. 5)
22. Right Ascension lock (see Fig. 5)
23. Declination lock (see Fig. 5)
24. Red dot viewfinder
25. Telescope front dust cover
26. Eyepiece holder slots (see Inset A)
27. Right Ascension setting circle
28. Declination setting circle (see Fig. 5)
29. Latitude dial (see Fig. 5)
30. Azimuth adjustment lock
31. Focus knobs
32. Optional motor drive gear (see Fig. 5)
33. Azimuth base (see Fig. 5)
34. Red dot viewfinder alignment screws (see Inset B)
35. Azimuth circle (see Fig. 5)
36. Cradle ring attachment lock­knob (see Fig. 6)
37. Cradle ring attachment
38. Tripod leg Phillips-head fastener screws (see Fig. 5)
39. Tripod-to-mount wingnuts
40. Accessory tray (see Inset A)
41. Leg brace support (see Inset A)
42. Sliding leg extension lock (see Inset C)
43. Sliding leg extension (see Inset C)
Figure 1: Meade 114EQ-AR Equatorial Reflecting Telescope
Inset A: Accessory Tray Inset B: Red Dot Viewfinder Assembly. Inset C: Tripod Leg
Meade114EQAR 3/28/07 9:52 AM Page 4
ASSEMBLE YOUR TRIPOD
The tripod is the basic support for your telescope. Its height may be adjusted so that you can view comfortably.
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1. Make sure that as you attach the legs (1)
to the mount that the leg braces (41) are facing inward.
2. Line up the holes at the top of one of the
legs with the holes in the mount.
3. Thread one of the 2-inch bolts through
the holes.
4. Thread a wingnut over the bolt and hand-
tighten to a firm feel (See Fig. 2).
5. Attach the remaining two legs to the
mount in the same manner.
2. Attach the triangular accessory tray to the leg brace supports using the supplied one-half inch bolts and screwdriver tool (See Fig. 3).
3. Thread the supplied nut over the end of the bolt.
4. Finger tighten the bolt and nut using the screwdriver tool.
5. Repeat with the other two leg braces.
ATTACH THE RED DOT VIEWFINDER
An eyepiece (19) has a narrow field of view. A viewfinder (24) has a wider field of view, which makes it easier to locate objects. The red dot viewfinder has a red dot to make it easier to line up more precisely with a target.
6. Spread the legs out evenly apart.
7. Set the height of your tripod: a. Rotate and loosen the leg lock
thumbscrew (42) to unlock the leg lock.
b. Slide the inner portion of the leg in or
out to the desired length. Repeat for the other two legs.
c. Rotate and tighten the leg lock
thumbscrew to relock the leg lock.
d. Repeat for the other two legs.
ATTACH THE ACCESSORY TRAY
The tray helps stabilize the tripod and is also a convenient holder of eyepieces and other Meade accessories, such as the Barlow lens.
1. Remove the plastic covers on the leg
brace supports (41, See Fig. 3).
Fig. 3
3
wingnut
Fig. 2
Fig. 4
Looking at or near the Sun will cause irreversable damage to your eye. Do not point this telescope at or near the Sun. Do not look through the telescope as it is moving.
Meade114EQAR 3/28/07 9:52 AM Page 5
1. Note the two thumbscrews (16, Fig. 4) thread onto two bolts on the optical tube. Remove the thumbscrews from the tube.
2. Line up the two holes on the red dot viewfinder bracket over the two bolts. Slide the bracket over the bolts.
3. Replace the thumbscrews on to the bolts and tighten to a firm feel.
INSERT THE EYEPIECE
1. Slide the MA25mm eyepiece (19) into eyepiece holder on the focuser (17).
2. Tighten the focuser thumbscrew to hold the eyepiece securely.
ATTACH THE COUNTERWEIGHT
1. Hold the counterweights (5) firmly in one hand, (one by one) slide the counterweights onto the counterweight shaft (6).
2. Threading the shaft into the base of the declination axis (Fig. 5). Be sure to support the counterweight with one hand while performing this step.
3. Slide the counterweight to a
position about 2" from the bottom of the shaft.
4. Secure in place by tightening the counterweight lock (7).
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Make sure the safety washer and screw (8) always remain in place on the shaft.
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BALANCING THE TELESCOPE
In order for the telescope to move smoothly on its mechanical axes, it must first be balanced as follows:
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If the counterweight is positioned as recommended previously then the telescope is already approximately balanced.
1. Loosen the right ascension lock (22). The telescope mount will turn freely about the polar axis. Rotate the telescope about the polar axis so that the counterweight shaft (6) is parallel to the ground (horizontal).
2. Loosen the counterweight's locking
4
(on reverse side)
(see p. 2 for feature names)
Fig. 5
Looking at or near the Sun will cause irreversable damage to your eye. Do not point this telescope at or near the Sun. Do not look through the telescope as it is moving.
Meade114EQAR 3/28/07 9:52 AM Page 6
2. Tighten the cradle ring attachment lock knob (36) to a firm feel.
ALIGN THE RED DOT VIEWFINDER
Perform the first part of this procedure during the daytime and the last step at night.
1. Point the telescope at an easy-to-find land object such as the top of a telephone pole or a distant mountain or tower. Look through the eyepiece and turn the focuser
knob (31) until the image is sharply focused. Center the object precisely in the eyepiece’s field of view.
2. Look through the red dot viewfinder. Turn one or more of the viewfinder’s alignment screws (34, Inset B) until the red dot is precisely over the same object as you centered in the eyepiece.
3. Check this alignment at night on a celestial object, such as the Moon or a bright star, and use the viewfinder’s alignment screws to make any necessary refinements.
SUN WARNING!
NEVER USE YOUR TELESCOPE
TO LOOK AT THE SUN!
LOOKING AT OR NEAR THE SUN WILL
CAUSE INSTANT AND IRREVERSIBLE
DAMAGE TO YOUR EYE. EYE DAMAGE IS
OFTEN PAINLESS, SO THERE IS NO WARNING TO THE OBSERVER THAT
DAMAGE HAS OCCURRED UNTIL IT IS TOO
LATE. DO NOT POINT THE TELESCOPE OR
ITS VIEWFINDER AT OR NEAR THE SUN. DO
NOT LOOK THROUGH THE TELESCOPE OR
ITS VIEWFINDER AS IT IS MOVING.
CHILDREN SHOULD ALWAYS HAVE ADULT
SUPERVISION WHILE OBSERVING.
5
Fig. 6
thumbscrew (7) and slide the counterweights (5) along the shaft until the telescope remains in any given position without tending to drift up or down around the polar axis. Retighten the counterweight lock (31).The telescope is now balanced.
PREPARE MOUNT
1. Attach the flexible cables (3) and (4). These cables are secured in place with a firm tightening of the thumbscrews located at the attachment ends of each cable.
2. Tilt the polar axis of the telescope to roughly a 45
° angle with the horizon:
Loosen the latitude adjustment lock (9) so you can move the mount to the desired position.
3. Re-tighten the latitude adjustment lock to secure the mount in place.
ATTACH THE OPTICAL TUBE TO THE MOUNT
1. Lay the optical tube (12) with cradle rings (14) onto the saddle plate (13).
Looking at or near the Sun will cause irreversable damage to your eye. Do not point this telescope at or near the Sun. Do not look through the telescope as it is moving.
Meade114EQAR 3/28/07 9:52 AM Page 7
In mapping the surface of the Earth, lines of longitude are drawn between the North and South Poles and lines of latitude are drawn in an East-West direction, parallel to the Earth's equator. Similarly, imaginary lines have been drawn to form a latitude and longitude on the celestial sphere. These lines are known as
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and
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The celestial map also contains two poles and an equator just like a map of the Earth. The celestial poles are defined as those two points where the Earth's North and South poles, if extended to infinity, would cross the celestial sphere. Thus, the North Celestial Pole is that point in the sky where the North Pole crosses the celestial sphere. The North Star, Polaris, is located very near the North Celestial Pole.
So just as an object's position on the Earth's surface can be located by its latitude and longitude, celestial objects may also be located using Right Ascension and Declination. For example: You can locate Los Angeles, California, by its latitude (+34
°) and longitude (118°). Similarly, you
can locate the Ring Nebula (also known as "M57") by its Right Ascension (18hr) and its Declination (+33
°).
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This Celestial version of longitude is measured in units of hours (hr), minutes (min), and seconds (sec) on a 24 hour "clock" (similar to how Earth's time zones ar determined by longitude lines). The "zero" line was chosen to pass through the constellation Pegasus, a sort of cosmic Greenwich meridian. R.A. coordinates range from 0hr 0min 0sec to 23hr 59min 59sec.
UNDERSTANDING CELESTIAL MOVEMENTS AND COORDINATES
Understanding where to locate celestial objects and how those objets move across the sky is the key to enjoying the hobby of astronomy. Most amateur astronomers practice "star-hopping" to locate celestial objects. They use star charts or astronomical software to identify bright stars and star patterns as "landmarks" in their search for astronomical objects. Another technique for locating objects is to use the setting circles that are provided on your telescope.
UNDERSTANDING HOW CELESTIAL OBJECTS MOVE
Due to the Earth's rotation, celestial bodies appear to move from East to West in a curved path through the skies.
All stars and celestial objects are mapped onto an imaginary sphere surrounding the Earth. This mapping system is similar to the system of latitude and longitude on Earth surface maps.
6
Looking at or near the Sun will cause irreversable damage to your eye. Do not point this telescope at or near the Sun. Do not look through the telescope as it is moving.
Meade114EQAR 3/28/07 9:52 AM Page 8
equator are indicated with a plus (+) sign (e.g., the Dec. of the North celestial pole is +90
°). Any point on the celestial equator
(such as thee constellations of Orion, Virgo, and Aquarius) is said to have a Declination of zero, shown as 0
° 0' 0".
All celestial objects therefore may be located with their celestial coordinates of Right Ascension and Declination.
LINING UP WITH THE CELESTIAL POLE
Objects in the sky appear to revolve around the celestial pole. (Actually, celestial objects are essentially "fixed" and their apparent motion is caused by Earth's rotation). During any 24 hour period, stars make one complete revolution about the pole, circling with the pole at the center. By lining up the telescope's polar axis with the North Celestial Pole (or for observers located in Earth's Southern Hemisphere with the South Celestial Pole), astronomical objects may be followed, or "tracked," by moving the telescope about one axis, the polar axis.
If the telescope is reasonably well aligned with the pole very little use of the
telescope's Declination flexible cable control is necessary. Virtually all of the required telescope tracking will be in Right Ascension. For the purposes of casual visual telescopic observations, lining up the telescope's polar axis to within a degree or two of the pole is more than sufficient: with this level of pointing accuracy, the telescope can track accurately by slowly turning the telescope's R.A. flexible cable control and keep objects in the telescopic field of view for perhaps 20 to 30 minutes.
POLAR ALIGNMENT OF THE EQUATORIAL MOUNT
To line up the Meade 114 EQ-AR with the pole, follow this procedure:
THE MEADE 4M COMMUNITY
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Go to www.Meade4M.com
to activate your membership today.
There are 24 primary lines of R.A., located at 15-degree intervals along the celestial equator. Objects located further and further East of the zero R.A. grid line (0hr 0min 0sec) carry higher R.A. coordinates.
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This celestial version of latitude is measured in degrees, arc­minutes, and arc-seconds (e.g., 15
° 27'
33"). Dec. locations North of the celestial
Fig. 7
14
15
16
17
18
19
20
21
22
23
0
1
12
11
10
9
8
7
5
6
4
3
2
13
Rotation of the Earth
0 Dec.
South Celestial Pole
Right Ascension
Star
Celestial Equator
-90 Dec.
+90 Déc.
D
e
c
l
i
n
a
t
i
o
n
North Celestial Pole (Vicinity of Polaris)
Looking at or near the Sun will cause irreversable damage to your eye. Do not point this telescope at or near the Sun. Do not look through the telescope as it is moving.
7
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