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 102
sets in the east, making about 3 complete revolutions to the day. If therebe inhabitants on Mars, Phobos must serve as a very fair time-piece. Cbe iplancta 87 and then from week to week draw a line through them corresponding to the movementof the planet. While some of the more conspicuous markings… … MARS, 1909 Drawing by Dr. Percival Lowell, Flagstaff, Arizona beginner,—its clearly defined image and its ruddy light giving a peculiar fascination tosuch faint details as do appear. Among these are the hour-glass marking, so namedfrom its peculiar shape, and the cap of polar snow—though the…
Astronomy
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