Newcomb, Simon, 1835-1909, Holden, Edward Singleton, 1846-1914, joint author · New York, H. Holt · leaf 481
FtO. 120.—THE OMEGA OR HORSESIIOE NEBULA. 462 ASTRONOMY. § 3. STAR CLUSTERS. The most noted of all the clusters is the Pleiades, which havealready been briefly described in connection with the constellationTaurus. The average naked eye can easily distinguish six starswithin it, but under favorable… … Fig. 127.—the trifid nebula. With the telescope, over a hundred A view of these is given in the map accompanying more stars can be counted,stars are seen jhe description of the Pleiades, Fig. 113, p. 425. This group con-tains Tempels variable nebula, so called because it has been sup-posed to be…
Astronomy
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