Recreations in astronomy : with directions for practical experiments and telescopic work (1879)
Warren, Henry White, 1831-1912 · New York : Harper & Brothers · leaf 235
r of the sword of Orion, >wn in Fig. 7s. A three-inch telescope resolves 0- into the famous trapezium, and a nine-inch in-two stars more. The Bhape of the nebula_ ble,and is hardly suggestive of the mouldinginfluence of gravitation. It is probably composed ofwing nitrogen and hydrogen gases.… … Fig. TS.—The great Nebula about (lie multiple Star 0 Ononis. (See Frontispiece.) seen in Fig. TO, and the ring nebula, Fig. SO. This lastpossibly consists of stars, and is situated, as shown inFig. 81, midway between j3 and y Lyrae. When Herschel was sweeping the heavens with histelescope, and saw…
Astronomy
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