Celestron AstroMaster 130EQ-MD Motor Drive Telescope AstroMaster Manual (90EQ
Celestron AstroMaster 130EQ-MD Motor Drive Telescope Manual
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Celestron AstroMaster 130EQ-MD Motor Drive Telescope manual content summary:
- Celestron AstroMaster 130EQ-MD Motor Drive Telescope | AstroMaster Manual (90EQ - Page 1
ENGLISH AstroMaster Series Telescopes INSTRUCTION MANUAL ● AstroMaster 90 EQ # 21064 ● AstroMaster 130 EQ # 31045 ● AstroMaster 90 EQ-MD # 21069 ● AstroMaster 130 EQ-MD # 31051 - Celestron AstroMaster 130EQ-MD Motor Drive Telescope | AstroMaster Manual (90EQ - Page 2
Photography...26 Planetary & Lunar Photography with Special Imagers 26 CCD Imaging for Deep Sky Objects ...26 Terrestrial Photography ...26 TELESCOPE MAINTENANCE ...27 Care and Cleaning of the Optics...27 Collimation of a Newtonian ...27 OPTIONAL ACCESSORIES ...30 AstroMaster Specifications...31 2 - Celestron AstroMaster 130EQ-MD Motor Drive Telescope | AstroMaster Manual (90EQ - Page 3
of an AstroMaster Series telescope. The AstroMaster Series of telescopes come in several different models and this manual covers four models mounted on the CG-3 German Equatorial Mount --90mm refractor and 130mm Newtonian and then both of these sizes with a motor drive. The AstroMaster Series is - Celestron AstroMaster 130EQ-MD Motor Drive Telescope | AstroMaster Manual (90EQ - Page 4
9 7 6 10 11 Figure 1-1 AstroMaster 90 EQ Refractor 1. Telescope Optical Tube 2. Dovetail Mounting Bracket 3. RA. Setting Circle 4. Star Pointer Finderscope 5. Eyepiece 6. Diagonal 7. Focus Knob 8. R.A. Slow Motion Cable 9. Latitude Adjustment Screw 10. Accessory Tray 11. Tripod 12. Counterweight - Celestron AstroMaster 130EQ-MD Motor Drive Telescope | AstroMaster Manual (90EQ - Page 5
11 10 3 4 13 5 6 7 9 8 Figure 1-2 AstroMaster 130 EQ Newtonian 1. Eyepiece 2. Tube Ring 3. Telescope Optical Tube 4. Primary Mirror 5. Dec. Slow Motion Cable 6. R.A. Slow Motion Cable 7. Latitude Adjustment Screw 8. Accessory Tray 9. Tripod 10. Counterweights 11. Dec. Setting Circle 12. Star - Celestron AstroMaster 130EQ-MD Motor Drive Telescope | AstroMaster Manual (90EQ - Page 6
Each AstroMaster comes in one box. The pieces in the box are - optical tube with attached sky pointer and tube rings (130 EQ only), CG-3 equatorial mount, counterweight bar, two 4.8 lbs. (2.2kg) counterweights, R.A. & Dec. slow-motion cables, 10mm eyepiece - 1.25", 20mm eyepiece - 1.25" (erect image - Celestron AstroMaster 130EQ-MD Motor Drive Telescope | AstroMaster Manual (90EQ - Page 7
mount allows you to tilt the telescopes axis of rotation so that you can track the stars as they move across the sky. The AstroMaster mount is a German equatorial mount (CG-3) that attaches to the tripod head. To attach the mount: 1. Remove the equatorial mount from the box (Figure 2-10). The - Celestron AstroMaster 130EQ-MD Motor Drive Telescope | AstroMaster Manual (90EQ - Page 8
. It makes no difference which shaft you use since both work the same. Use whichever one you find more convenient. 3. Tighten 130 EQ Newtonian, the mounting bar is the bracket which is attached to the tube rings. For the 90 EQ refractor the mounting bar is attached along the bottom of the telescope - Celestron AstroMaster 130EQ-MD Motor Drive Telescope | AstroMaster Manual (90EQ - Page 9
is the 114 EQ telescope tube Installing the Diagonal & Eyepieces (refractor) The Eyepieces on the Newtonians The eyepiece (or ocular) is an optical element that magnifies the image focused by the telescope. Without the eyepiece it would be impossible to use the telescope visually. Eyepieces - Celestron AstroMaster 130EQ-MD Motor Drive Telescope | AstroMaster Manual (90EQ - Page 10
tracking if using an optional motor drive. To balance the mount: 1. Release the R.A. lock knob (see figure 2-21) and position the telescope off to TELESCOPE TUBE COMPLETELY! 5. For the 130 EQ Newtonian, loosen the screws that hold the telescope tube inside the tube rings and slide the telescope - Celestron AstroMaster 130EQ-MD Motor Drive Telescope | AstroMaster Manual (90EQ - Page 11
2-22 Figure 2-23 Adjusting the Equatorial Mount In order for a motor drive to track accurately, the telescope's axis of rotation must be parallel to the Earth's axis of rotation, a process known as polar alignment. Polar alignment is achieved NOT by moving the telescope in R.A. or Dec., but by - Celestron AstroMaster 130EQ-MD Motor Drive Telescope | AstroMaster Manual (90EQ - Page 12
A Newtonian reflector uses a single concave mirror as its primary. Light enters the tube traveling to the mirror at the back end. There light is bent forward in the tube to a single point, its focal point. Since putting your head in front of the telescope to look at the image with an eyepiece would - Celestron AstroMaster 130EQ-MD Motor Drive Telescope | AstroMaster Manual (90EQ - Page 13
. Newtonian reflectors produce a right-side-up image but the image will appear rotated based on the location of the eyepiece holder in relation to the ground. However, by using the erect image eyepiece supplied with the AstroMaster Newtonians, the image is correctly oriented. Image orientation as - Celestron AstroMaster 130EQ-MD Motor Drive Telescope | AstroMaster Manual (90EQ - Page 14
this: Focal Length of Telescope (mm) Magnification Focal Length of Eyepiece (mm) Let's say, for example, you are using the 20mm eyepiece that came with your telescope. To determine the magnification you simply divide the focal length of your telescope (the AstroMaster 90 EQ for this example has - Celestron AstroMaster 130EQ-MD Motor Drive Telescope | AstroMaster Manual (90EQ - Page 15
using the same 20mm eyepiece that is supplied standard with the AstroMaster 90 EQ telescope. The 20mm eyepiece ensure you get the best possible image. • Never look through window specifically glasses), you may want to remove them when observing with an eyepiece attached to the telescope. When using - Celestron AstroMaster 130EQ-MD Motor Drive Telescope | AstroMaster Manual (90EQ - Page 16
this point, this manual covered the assembly and basic operation of your telescope. However, to understand your telescope more thoroughly, you horizon, and are said to be circumpolar because they never rise and never set. You will never see the stars complete one circle because the sunlight during - Celestron AstroMaster 130EQ-MD Motor Drive Telescope | AstroMaster Manual (90EQ - Page 17
east and set in the telescope pointed. The AstroMaster CG-3 using this method of polar alignment. 3. Adjust the mount in altitude until the latitude indicator points to your latitude. Moving the mount affects the angle the polar axis is pointing. For specific information on adjusting the equatorial - Celestron AstroMaster 130EQ-MD Motor Drive Telescope | AstroMaster Manual (90EQ - Page 18
done in the dark when Polaris is visible. 1. Set the telescope up so that the polar axis is pointing north - see Figure 4-6. 2. Loosen aligning, do NOT move the telescope in R.A. or DEC. You do not want to move the telescope itself, but the polar axis. The telescope is used simply to see where the - Celestron AstroMaster 130EQ-MD Motor Drive Telescope | AstroMaster Manual (90EQ - Page 19
telescope at the right elevation above the southern horizon. To align your telescope: 1. Make sure the polar axis of the mount is pointing due south. Use pointing. For specific information on adjusting the equatorial mount, please see the section "Adjusting the Mount" in your telescope manual. 4. If - Celestron AstroMaster 130EQ-MD Motor Drive Telescope | AstroMaster Manual (90EQ - Page 20
, the declination setting circle will read 90°. If the declination setting circle is not aligned, move the telescope so that the eyepiece. Remember, while Polar aligning, do NOT move the telescope in R.A. or DEC. You do not want to move the telescope itself, but the polar axis. The telescope is used - Celestron AstroMaster 130EQ-MD Motor Drive Telescope | AstroMaster Manual (90EQ - Page 21
is required if you want to do long exposure deep-sky astrophotography through the telescope. To be able to do this type of astrophotography you will also need to have an optional motor drive and other astrophotography accessories. The declination drift method requires that you monitor the drift of - Celestron AstroMaster 130EQ-MD Motor Drive Telescope | AstroMaster Manual (90EQ - Page 22
they can be learned by using the Celestron Sky Maps (#93722) or consulting a current astronomy magazine. To align the R.A. setting circle: 1. Locate a atlas or reference book. 3. Hold the telescope and release the Dec. lock knob. 4. Move the telescope in declination until the indicator is pointing - Celestron AstroMaster 130EQ-MD Motor Drive Telescope | AstroMaster Manual (90EQ - Page 23
below and then reinstall the motor drive). The motor drive is sold as an optional accessory (Model # 93514) for other models. Installation of the Motor Drive - for those purchasing it as an optional accessory. The motor drive attaches to the AstroMaster equatorial mount via a flexible coupler that - Celestron AstroMaster 130EQ-MD Motor Drive Telescope | AstroMaster Manual (90EQ - Page 24
With your telescope set up, you are ready to use it for observing. This section covers visual . • To increase contrast and bring out detail on the planetary surface, try using Celestron eyepiece filters. Observing the Sun Although overlooked by many amateur astronomers, solar observation is - Celestron AstroMaster 130EQ-MD Motor Drive Telescope | AstroMaster Manual (90EQ - Page 25
you get the most out of your telescope. Transparency Transparency is the clarity of the pollution greatly affect transparency. While not a problem for the brighter stars and planets, bright slightly displaced creating an imperfect or smeared image. These atmospheric disturbances vary from time-to - Celestron AstroMaster 130EQ-MD Motor Drive Telescope | AstroMaster Manual (90EQ - Page 26
• Polar align the telescope and start the optional motor drive for tracking. • You can image the Moon as well as the brighter planets. You will have to experiment with various settings and exposure times. Much information can be obtained from your camera instruction manual which can supplement what - Celestron AstroMaster 130EQ-MD Motor Drive Telescope | AstroMaster Manual (90EQ - Page 27
of your telescope using the optional Newtonian Collimation Tool (#94183) offered by Celestron. To collimate the telescope without the Collimation Tool, read the following section on night time star collimation. For very precise collimation, the optional Collimation Eyepiece 1 ¼" (# 94182) is - Celestron AstroMaster 130EQ-MD Motor Drive Telescope | AstroMaster Manual (90EQ - Page 28
Night Time Star Collimating After successfully completing daytime collimation, night time star collimation can be done by closely adjusting the primary mirror while the telescope tube is on its mount and pointing at a bright star. The telescope should be set up at night and a star's image should be - Celestron AstroMaster 130EQ-MD Motor Drive Telescope | AstroMaster Manual (90EQ - Page 29
in your eyepiece, by adjusting the collimation screws, toward the three o'clock position in the field of view. It may only be necessary to adjust a screw enough to move the star's image from the center of the field of view to about halfway, or less, toward the field's edge (when using a high power - Celestron AstroMaster 130EQ-MD Motor Drive Telescope | AstroMaster Manual (90EQ - Page 30
and planetary photography. Motor Drive (# 93514) - A single axis (R.A.) motor drive for the AstroMaster telescopes compensates for the earth's rotation keeping an object in the eyepiece field of view. This makes observing much more enjoyable and eliminates the constant use of the manual slow motion - Celestron AstroMaster 130EQ-MD Motor Drive Telescope | AstroMaster Manual (90EQ - Page 31
notice or obligation 31045 & 31051 AM 130 EQ Newtonian 130mm (5") 650mm f/5 31% - 10% Fully Coated Star Pointer n/a 20mm Erect Image (33x) 10mm (65x) 1.5° 79 Equatorial CG3 yes yes yes yes 306x 13.1 1.06 0.89 345x 24" (61cm) 28 lbs. (12.7kg) Note: # 21069 & # 31051 include a Motor Drive 31 - Celestron AstroMaster 130EQ-MD Motor Drive Telescope | AstroMaster Manual (90EQ - Page 32
Celestron 2835 Columbia Street Torrance, CA 90503 U.S.A. Tel. (310) 328-9560 Fax. (310) 212-5835 Website www.celestron.com Copyright 2008 Celestron All rights reserved. (Products or instructions may change without notice or obligation.) Item # 21064-INST Printed in China $10.00 01-08
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INSTRUCTION MANUAL
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AstroMaster 90 EQ # 21064
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AstroMaster 130 EQ # 31045
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AstroMaster 90 EQ-MD # 21069
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AstroMaster 130 EQ-MD # 31051
ENGLISH