beautypg.com

Celestron C100ED-R User Manual

Page 3

background image

3

Light Control .................................................................................................................................... 27

Factory Settings ................................................................................................................................ 27

Version ............................................................................................................................................. 27

Get Alt-Az ........................................................................................................................................ 27

Goto Alt-Az ...................................................................................................................................... 27

Hibernate .......................................................................................................................................... 27

Turn On/Off GPS ............................................................................................................................. 27

TELESCOPE BASICS ................................................................................................................................................. 29

Image Orientation ..................................................................................................................................... 29

Focusing ................................................................................................................................................... 30

Aligning the Finderscope ......................................................................................................................... 30

Calculating Magnification ........................................................................................................................ 30

Determining Field of View ....................................................................................................................... 31

General Observing Hints........................................................................................................................... 31

ASTRONOMY BASICS............................................................................................................................................... 32

The Celestial Coordinate System.............................................................................................................. 32

Motion of the Stars ................................................................................................................................... 33

Finding the North Celestial Pole............................................................................................................... 35

Declination Drift Method of Polar Alignment.......................................................................................... 36

CELESTIAL OBSERVING......................................................................................................................................... 37

Observing the Moon ................................................................................................................................. 37

Lunar Observing Hints.............................................................................................................................. 37

Observing the Planets ............................................................................................................................... 37

Observing the Sun..................................................................................................................................... 37

Solar Observing Hints............................................................................................................................... 38

Observing Deep Sky Objects .................................................................................................................... 38

Seeing Conditions ..................................................................................................................................... 38

Transparency............................................................................................................................................. 38

Sky Illumination ....................................................................................................................................... 38

Seeing ....................................................................................................................................................... 38

ASTROPHOTOGRAPHY ........................................................................................................................................... 40

Piggyback ................................................................................................................................................. 40

Short Exposure Prime Focus Photography ............................................................................................... 41

Terrestrial Photography ............................................................................................................................ 42

Metering.................................................................................................................................................... 42

Reducing Vibration................................................................................................................................... 42

Auto Guiding ............................................................................................................................................ 43

TELESCOPE MAINTENANCE ................................................................................................................................. 44

Care and Cleaning of the Optics............................................................................................................... 44

OPTIONAL ACCESSORIES..................................................................................................................................... 45

APPENDIX A – TECHNICAL SPECIFICATIONS ............................................................................................... 47

APPENDIX B – GLOSSARY OF TERMS ............................................................................................................... 48

APPENDIX C – LONGITUDES AND LATITUDES ................................................................................................ 51

APPENDIX D – RS-232 CONNECTION ................................................................................................................... 56

APPENDIX E – TIME ZONE MAP ........................................................................................................................... 58

SKY MAPS.................................................................................................................................................................... 60

This manual is related to the following products: