Table of Contents | Celestron C21061 specification

Table of Contents

INTRODUCTION	3
ASSEMBLY	6
Setting up the Tripod	6
Moving the Telescope Manually	7
Attaching the Telescope Tube to the Mount	7
Installing the Diagonal & Eyepieces ( refractor)	8
Installing the Eyepieces on the Newtonians	8
TELESCOPE BASICS	9
Image Orientation	10
Focusing	10
Aligning the Finderscope	10
Calculating Magnification	11
Determining Field of View	12
General Observing Hints	12
ASTRONOMY BASICS	13
The Celestial Coordinate System	13
Motion of the Stars	14
CELESTIAL OBSERVING	15
Observing the Moon	15
Observing the Planets	15
Observing the Sun	15
Observing Deep Sky Objects	16
Seeing Conditions	18
ASTROPHOTOGRAPHY	19
Short Exposure Prime Focus Photography	19
Piggyback Photography	19
Planetary & Lunar Photography with Special Imagers	19
CCD Imaging for Deep Sky Objects	19
Terrestrial Photography	19
TELESCOPE MAINTENANCE	20
Care and Cleaning of the Optics	20
Collimation of a Newtonian	20
OPTIONAL ACCESSORIES	23
AstroMaster Specifications	24

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Celestron C21061 manual Table of Contents

Contents

AstroMaster Series Telescopes Table of Contents Quick and easy no-toolset up 8 9 Figure 1-1AstroMaster 90AZ Refractor 8 9 Figure 1-2AstroMaster 114 AZ Newtonian Setting up the Tripod Moving the Telescope Manually Attaching the Telescope Tube to the Mount in step 2 above Installing the Diagonal & Eyepieces refractorInstalling the Eyepieces on the Newtonians telescope useful for terrestrial viewingPage Aligning the Finderscope FocusingImage Orientation Switch Calculating MagnificationBattery Compartment Focal Length of Telescope mm Determining Field of View General Observing Hints The Celestial Coordinate System Motion of the Stars Observing the Sun Observing the MoonObserving the Planets Lunar Observing Hints Observing Deep Sky Objects Star Hopping 4.Point about halfway between these two stars Sky Illumination Seeing ConditionsTransparency Seeing CCD Imaging for Deep Sky Objects Short Exposure Prime Focus PhotographyPiggyback Photography Terrestrial Photography Aigning the Secondary Mirror Care and Cleaning of the OpticsCollimation of a Newtonian Aligning the Primary Mirror Night Time Star Collimating to achieve the necessary mirror movement You will find that additional accessories for your AstroMaster telescope will enhance your viewing pleasure and expand the usefulness of your telescope. This is just a short listing of various accessories with a brief description. Visit the Celestron website or the Celestron Accessory Catalog for complete descriptions and all accessories available AstroMaster SpecificationsNote Specifications are subject to change 21061 Celestron Copyright 2007 Celestron All rights reserved