Oct 202018
 

Taken only two days from full, the only part of the Moon with any shadows are the limbs. This image is of the western limb centered on the crater Lohrmann. The 19 mile wide crater is circular but does not look it due to foreshortening. The crater lies between the crater Grimaldi to the south and Hevelius to the north. Most of the unlabeled craters are unnamed and identified by a letter associating it with a adjacent named crater. These are known as satellite craters or satellite features. For example, see Flamsteed T at the upper left of the image. Crater Flamsteed is well off the left edge.

Of note is the extensive fractured surface (rimae) inside and out of crater Hevelius.

Moon [(V)L:657×0.9ms] (mouse over for labels)

Crater Lohrmann is named for Wilhelm Gotthelf Lohrmann (1796 – 1840). Born in Dresden, he was a cartographer, astronomer and meteorologist. Using his own observations he started producing a set of lunar maps in 1821. Although completed in 1836 they were not published until 1878, well after his death. He is also honored by asteroid (4680) Lohrmann.

 Posted by at 12:02

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