Celestron AstroMaster 90AZ Bedienerhandbuch

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10 Image orientation as seen with the unaided eye & using erecting devices on refractors & Newtonians Inverted image, normal with Newto

11 On/Off Switch Battery Compartment

12 DDeetteerrmmiinniinngg FFiieelldd ooff VViieeww Determining the field of view is important if you want to get an idea of the angular size o

Up to this point, this manual covered the assembly and basic operation of your telescope. However, to understand your telescope more thoroughly,

14 MMoottiioonn ooff tthhee SSttaarrss The daily motion of the Sun across the sky is familiar to even the most

15 With your telescope set up, you are ready to use it for observing. This section covers visual observing hint

16 OObbsseerrvviinngg DDeeeepp SSkkyy OObbjjeeccttss Deep-sky objects are simply those objects outside the bou

17 Star hopping to the Andromeda Galaxy (M31) is a snap, since all the stars needed to do so are visible to the nak

18 SSeeeeiinngg CCoonnddiittiioonnss Viewing conditions affect what you can see through your telescope durin

19 The AstroMaster series of telescopes was designed for visual observing. After looking at the night sky for a

2 Table of Contents INTRODUCTION ...

20 While your telescope requires little maintenance, there are a few things to remember that will ensure your tel

21 Figure 7-1 ight Time Star Collimating fter successfully completing daytime collimation,

22Figure 7-3A collimated teleother performing the adjustments. IMPORTANT: After making the first, or each adjustment, it is necessary to re-aim th

23 You will find that additional accessories for your AstroMaster telescope will enhance your viewing leasure and expand the usefulness of your te

AstroMaster Specifications 21061 21063 31043 AM 70 AZ AM 90 AZ AM 114 AZ Optical Design Refractor Refractor Newtonian Apertur

Celestron 2835 Columbia Street Torrance, CA 90503 U.S.A. Tel. (310) 328-9560 Fax. (310) 212-5835 Website www.cele

Congratulations on your purchase of an AstroMaster Series telescope. The AstroMaster Series of telescopes come in several different models and this

1 2 3 4 5 67 8 9 10 11 12 Figure 1-1 AstroMaster 90AZ Refractor (AstroMast

9 11 10 12 8 6 7 543 21 Figure 1-2 AstroMaster 114 AZ Newtonian 1. Star Pointer Finderscope 7. Azi

This section covers the assembly instructions for your AstroMaster telescope. Your telescope should be set up indoor the first time so that it is

7 MMovoviinngg tthhee TTeelleessccooppee MMaannuuaallllyyhe AstroMaster Alt-Az mount is easy to move wherever you want to point it. The up and d

Installing the Diagonal & Eyepieces ( refractor) Installing the Diagonal & Eyepieces ( refractor 8 )he diagonal is a prism that diverts the

A telescope is an instrument that collects and focuses light. The nature of the optical design determines how the light is focused. Some telescope