sketches : Moon : Theophilus, Cyrillus, Catharina 09-04-2004

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The "Rukl" numbers refer to charts in Antonin Rukl's Atlas of the Moon, widely acclaimed by lunar observers as the best lunar atlas for the telescopic observer. Long out of print, the second edition has been recently reissued by Sky Publishing. The "L" numbers refer to the feature's position in the Lunar 100, where applicable. The Lunar 100 is an observing list covering the 100 most significant features on the Moon, ordered by difficulty.

Ptolemaeus, Alphonsus, Arzachel 11-19-2004

Walter, 02-27-2004
Theophilus, Cyrillus, Catharina 09-04-2004
Rukl 46. L 8. The three craters are lit by an approaching third-quarter moon. Theophilus is half-lit, with a shadow covering most of the floor. Cyrillus is mostly visible, Catharina is fully in shadow.

Ptolemaeus, Alphonsus, Arzachel 11-19-2004

Walter, 02-27-2004

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Photo album generated by album from Dave's MarginalHacks on Sat Nov 8 19:35:56 2008