A beginner's star-book; an easy guide to the stars and to the astronomical uses of the opera-glass, the field-glass and the telescope (1912)
Murphy, Edgar Gardner, 1869-1913 · New York, London, G.P. Putnam's sons · leaf 90
KEY-MAP TO MOON, AT SIX DAYS See accompanying text, with illustration opposite ^be flDooii in tbe telescope 75 … ameter, Vitruvius 19. The small ring-plains, Kant (26) and Maedler (27), lie to the eastand west respectively of Theophilus, No. 30. Theophilus, 30; Cyrillus, 31; and Catharina, 32;—this triple group forms one of the When the moon is 53^2 to 73/2 days old, orwhen 18 to 20 days old, theymay be…
Astronomy
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