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 296
an axis. The particles of the nebula areacted upon by two forces: (i) The gravitation ofthe mass; (2) The centrifugal force of rotation.As the mass condenses, the rotation becomes morerapid, owing to the conservation of the moment ofmomentum, and the contraction of the radius of The Cosmogony 243… … THE GREAT NEBULA IN ANDROMEDA(Photographed by Roberts, 1888— Exposure, four hours) behind, revolving around the central mass in anelliptic orbit, so well illustrated in the above engrav-ing of the great nebula in Andromeda. The bodythus separated will in the course of ages condenseinto a satellite…
Astronomy
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