Celestron C21061 - Manuals - manualsarea.com

Page 2 - Table of Contents; OPTIONAL ACCESSORIES

2 Table of Contents INTRODUCTION .......................................................................................................................... 3 ASSEMBLY ................................................................................................................................... 6...

Page 3 - two year limited warranty; . For details see our website at; Warning

Congratulations on your purchase of an AstroMaster Series telescope. The AstroMaster Series of telescopes come in several different models and this manual covers three models mounted on the Alt-AZ Mount ((an altazimuth is the simplest type of mount with two motions – altitude (up & down) and azi...

Page 4 - Figure 1-1 AstroMaster 90AZ Refractor

1 2 3 4 5 6 7 8 9 10 11 12 Figure 1-1 AstroMaster 90AZ Refractor (AstroMaster 70AZ refractor similar) 1. Objective Lens 7. Pan Handle 2. Telescope Optical Tube 8. Accessory Tray 3. Star Pointer Finderscope 9. Tripod 4. Eyepiece 10. Azimuth Lock 5. Diagonal 11. Alt-Az Mount 6. Focus Knob 12. Dovetail...

Page 5 - Figure 1-2 AstroMaster 114 AZ Newtonian

9 11 10 12 8 6 7 5 4 3 2 1 Figure 1-2 AstroMaster 114 AZ Newtonian 1. Star Pointer Finderscope 7. Azimuth Lock 2. Eyepiece 8. Accessory Tray 3. Tube Ring 9. Tripod 4. Telescope Optical Tube 10. Alt-Az Mount 5. Primary Mirror 11. Dovetail Mounting Bracket 6. Pan Handle 12. Focus Knob 5

Page 9 - Figure 3-2

A telescope is an instrument that collects and focuses light. The nature of the optical design determines how the light is focused. Some telescopes, known as refractors, use lenses, .and other telescopes, known as reflectors (Newtonians), use mirrors. Developed in the early 1600s, the refractor is t...

Page 11 - Battery Compartment; the life of both the battery and the LED.; Magnification =

11 On/Off Switch Battery Compartment Figure 3-4 Figure 3-5 To align the Star Pointer finderscope: 1. To turn on the Star Pointer, turn the switch to the “on” position – see Figure 3-4. 2. Locate a bright star or planet and center it in a low power eyepiece in the main telescope. 3. With both eyes op...

Page 13 - The celestial sphere seen from the outside showing R.A. and DEC

Up to this point, this manual covered the assembly and basic operation of your telescope. However, to understand your telescope more thoroughly, you need to know a little about the night sky. This section deals with observational astronomy in general and includes information on the night sky and pol...

Page 19 - Figure 6-1

19 The AstroMaster series of telescopes was designed for visual observing. After looking at the night sky for a while you may want to try your hand at photography of it. There are several forms of photography possible with your telescope for celestial as well as terrestrial pursuits. Below is just a...

Page 20 - Do NOT rub in circles!; Aigning the Secondary Mirror

20 While your telescope requires little maintenance, there are a few things to remember that will ensure your telescope performs at its best. C C a a r r e e a a n n d d C C l l e e a a n n i i n n g g o o f f t t h h e e O O p p t t i i c c s s Occasionally, dust and/or moisture may build up on the...

Page 21 - ight Time Star Collimating; re beginning; ook into the focuser and notice if; Aligning the Primary Mirror; Procedure (Please read this section completely befo; turn will make a difference, with approximately a

21 Figure 7-1 ight Time Star Collimating fter successfully completing daytime collimation, night time star collimation can be done by closely re beginning ): ike the North Star (Polaris). It can mary mirror, locate the collimation screws on the rear of the telescope tube. ook into the focuser and no...