Celestron 11074-XLT, Инструкция по эксплуатации

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Focusing ................................................................................................................................................................................................26
Calculating Magnification.....................................................................................................................................................................27
Determining Field of View ....................................................................................................................................................................27
General Observing Hints.......................................................................................................................................................................27
ASTRONOMY BASICS ...............................................................................................................................................................................28
The Celestial Coordinate System...........................................................................................................................................................28
Motion of the Stars ................................................................................................................................................................................29
Polar Alignment (with optional Wedge) ................................................................................................................................................30
All-Star Polar Alignment .......................................................................................................................................................................30
All-Star Polar Alignment.......................................................................................................................................................................................... 30
Finding the North Celestial Pole ...........................................................................................................................................................31
Declination Drift Method of Polar Alignment .......................................................................................................................................................... 32
CELESTIAL OBSERVING .........................................................................................................................................................................33
Observing the Moon ..............................................................................................................................................................................33
Lunar Observing Hints ............................................................................................................................................................................................. 33
Observing the Planets............................................................................................................................................................................33
Planetary Observing Hints........................................................................................................................................................................................ 33
Observing the Sun..................................................................................................................................................................................34
Solar Observing Hints .............................................................................................................................................................................................. 34
Observing Deep Sky Objects .................................................................................................................................................................34
Seeing Conditions..................................................................................................................................................................................34
Transparency.........................................................................................................................................................................................34
Sky Illumination.....................................................................................................................................................................................34
Seeing ....................................................................................................................................................................................................34
CELESTIAL PHOTOGRAPHY .................................................................................................................................................................36
Short Exposure Prime Focus Photography ...........................................................................................................................................36
Eyepiece Projection...............................................................................................................................................................................37
Long Exposure Prime Focus Photography............................................................................................................................................38
Periodic Error Correction (PEC)..........................................................................................................................................................39
Using Periodic Error Correction ............................................................................................................................................................................... 39
Terrestrial Photography ........................................................................................................................................................................40
Metering ................................................................................................................................................................................................................... 40
Reducing Vibration .................................................................................................................................................................................................. 40
F/6.3 with Reducer/Corrector ................................................................................................................................................................................... 41
Auto Guiding............................................................................................................................................................................................................ 41
TELESCOPE MAINTENANCE .................................................................................................................................................................42
Care and Cleaning of the Optics ...........................................................................................................................................................42
Collimation............................................................................................................................................................................................42
OPTIONAL ACCESSORIES
.....................................................................................................................................................................44
APPENDIX A - TECHNICAL SPECIFICATIONS ..................................................................................................................................46
APPENDIX B - GLOSSARY OF TERMS..................................................................................................................................................47
APPENDIX C – RS-232 CONNECTION (FOR COMPUTERIZED HAND CONTROL)
.....................................................................50
Communication Protocol:......................................................................................................................................................................................... 50
APPENDIX F – TIME ZONE MAP............................................................................................................................................................51
APPENDIX F – MAPS OF TIME ZONES .................................................................................................................................................51
SKY MAPS ....................................................................................................................................................................................................53
OBSERVATIONAL DATA SHEET ...........................................................................................................................................................59