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Instruction Manual
E
F
G
H
S
M
A.
Eyepiece
B.
Eyepiece Holder
C.
Thumbscrews
D.
Focus Knob
E.
Finderscope Eyepiece
F.
Thumbscrews (Adj. Screw)
G.
Finderscope
H.
Tube Ring Adjustment Knob (hidden) – (not shown)
I.
Optical Window
J.
Thumbscrew
T A B L E T O P
C
K.
L.
M.
N.
O.
P.
Q.
R.
S.
76
A
B
L
N
O
P
Q
R
Telescope Tube
Tube Ring
Rear Housing (Primary Mirror Inside)
Tube Tripod Telescope Arm
Clamp Lock Azimuth (side-to-side) Adjustment
Tripod Head
Tripod Legs
Tripod Feet
Clamp Lock Vertical Adjustment
D
I
J
K
2
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Summary of Contents for Celestron 31034
- Page 1 T A B L E T O P Eyepiece Telescope Tube Eyepiece Holder Tube Ring Thumbscrews Rear Housing (Primary Mirror Inside) Focus Knob Tube Tripod Telescope Arm Finderscope Eyepiece Clamp Lock Azimuth (side-to-side) Adjustment Thumbscrews (Adj. Screw) Tripod Head Finderscope Tripod Legs Tube Ring Adjustment Knob (hidden) –...
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Page 2: Telescope Assembly
1. INTRODUCTION Thank you for purchasing this Celestron 76mm (3") Tabletop Telescope. This telescope is a precision scientific instrument. With it you will enjoy numerous objects in the sky—planets, nebulae, star clusters, galaxies and other astronomical objects. The altazimuth mount is the simplest and easiest type of mount to use with two motions altitude (up and down) and azimuth (side-to-side). - Page 3 C. Mounting the eyepiece: Take the low power (20mm) eyepiece (A) from the box and remove it from the plastic vial. Remove the plug up cap from the eyepiece holder (B). Insert the eyepiece into the eyepiece holder and hold in place with the thumbscrews (C). 3.
- Page 4 4. UNDERSTANDING THE SKY The Celestial - Coordinate System. The celestial-coordinate system is an imaginary projection of the Earth's geographical coordinate system onto the celestial sphere which seems to turn overhead at night. This celestial grid is complete with equator, latitudes, longitudes and poles. The Earth is in constant motion as it rotates on its axis.
- Page 5 Given the celestial coordinate system, it now becomes possible to find celestial objects by translating their celestial coordinates using telescope pointing positions. For this you use setting circles (if you have the Firstscope 76 EQ - equatorial mount models) for R.A. and Dec. to find celestial coordinates for stellar objects which are given in star charts and reference books.
- Page 6 1. To use the Barlow Lens, insert the smaller barrel end into the focuser and tighten the thumb screw. Then insert a .96" eyepiece in the other end of the Barlow Lens and tighten the thumb screw. Focuser Barlow Lens Eyepiece 6.
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Page 7: Telescope Maintenance
NOTE: Specifications are subject to change without notice. 9. OPTIONAL ACCESSORIES Celestron International offers a wide assortment of optional accessories to expand your interests. A. Sky Maps (#93722) - Invaluable when learning the night sky. They include all the constellations with the brighter deep-sky objects. - Page 8 E. Other - Numerous Accessories are available. See the Celestron Accessory Catalog (#93685) or ask your Celestron dealer for details.
- Page 9 CELESTRON ONE YEAR LIMITED WARRANTY Celestron International (CI) warrants this telescope to be free from defects in materials and workmanship for one year from the date of purchase. CI will repair or replace such product or part thereof which, upon inspection by CI, is found to be defective in materials or workmanship.