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Stars and telescopes; a hand-book of popular astronomy founded on the 9th ed. of Lynn's Celestial motions (1901)
Todd, David P. (David Peck), 1855-1939, Lynn, William Thynne, 1835-1911 · Boston, Little, Brown · leaf 153
5, the greaterdensity of the atmosphere surrounding Venus is readilyinferred. — D. P. T. 112 Stars and Telescopes land. The duration of the axial rotation ©f Mars is24h 37m 2 2s.7, a constant now very accurately known.The axis is inclined to the orbit at an angle of about630, somewhat less than in… … MARS AND THE APPARENT ORBITS OF ITS SATELLITES In August 1877 Professor Hall discovered thatthis planet is attended by two satellites, to which heafterward gave the names Phobos and Deimos.28 The 28 The illustration on the preceding page represents Marsas drawn by M. Flammarion at Juvisy when the…Astronomy
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