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.
Rukl 65. Southern portion of moon, in a cratered area near the central meridian. Best seen at half phases. The view actually got much more interesting after I completed the sketch, as the lunar sunrise hit the floor of the crater, illuminating the floor and creating dark shadows from the central peak (pictured here) to the W side of the crater.
Copyright © 2003-2007 Michael Portuesi.
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