This detailed guide to viewing and studying comets is timed to coincide with the most dazzling comet of recent history--C/2012 S1 (ISON), due in the Autumn of 2013. It includes specially prepared maps and a full explanation of the nature and origins of comets.
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This detailed guide to viewing and studying comets is timed to coincide with the most dazzling comet of recent history--C/2012 S1 (ISON), due in the Autumn of 2013. It includes specially prepared maps and a full explanation of the nature and origins of comets.
Read Less