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Observing the Moon ..................................................................................................................................... 40
Observing the Planets ................................................................................................................................... 40
Observing the Sun ......................................................................................................................................... 41
Observing Deep-Sky Objects ........................................................................................................................ 41
Using the Setting Circles ................................................................................................................ 42
Star Hopping................................................................................................................................... 43
Viewing Conditions...................................................................................................................................... 45
Transparency .................................................................................................................................. 45
Sky Illumination ............................................................................................................................. 45
Seeing ............................................................................................................................................. 45
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▲ CELESTIAL PHOTOGRAPHY ........................................................................................................................ 47
Short Exposure Prime Focus ......................................................................................................................... 48
Piggyback ..................................................................................................................................................... 49
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▲ TELESCOPE MAINTENANCE ......................................................................................................................... 51
Care and Cleaning of the Optics ................................................................................................................... 51
Collimation ................................................................................................................................................... 51
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▲ OPTIONAL ACCESSORIES .............................................................................................................................. 53
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▲ THE MESSIER CATALOG ................................................................................................................................ 56
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▲ LIST OF BRIGHT STARS .................................................................................................................................. 59
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▲ FOR FURTHER READING ................................................................................................................................ 60
ii • Table of Contents