Elementary astronomy; a beginner's text-book (1899)
Holden, Edward Singleton, 1846-1914 · New York, H. Holt and company · leaf 335
r satellite ofMars one of the most interesting bodies with which we are acquainted.It performs a revolution in its orbit from west to east in less thanhalf the time that Mars revolves on its axis. In consequence, to theinhabitants of Mars it would seem to rise in the west and set in the east. 314… … Fig. 31 lh the spectator will have moved to ; and Phobos to ; in 2h, etc. etc. The light of Phobos is about -fa of the light of our Moon; ofDeimos about T^W CHAPTER XVIII. THE MOON—THE MINOR PLANETS. 33. The Moon.—The Moon—the satellite of the Earth—revolves abont its primary in a periodic-time of…
Astronomy
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