Celestron Astromaster 70az C21061 사용자 설명서

2

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