Studies of the Nebulae: Made at the Lick Observatory, University of California, at Mount Hamilton, California, and Santiago, Chile, Volume 13University of California Press, 1918 - 268 pages |
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Page 12
... nebula is undoubtedly of the diffuse or the planetary type . Such ... Nebula in Andromeda situated five hundred times as far away as at present , it would appear ... ring ; in other examples the whorls appear to begin at the ends of this ...
... nebula is undoubtedly of the diffuse or the planetary type . Such ... Nebula in Andromeda situated five hundred times as far away as at present , it would appear ... ring ; in other examples the whorls appear to begin at the ends of this ...
Page 18
... nebula . None of the many small nebulae on this plate appear to coincide ... nebula . This region is unusually thick with small nebulae and nebulous stars ... ring 1.8 long . 48 s.n. A small and very faint oval , 20 ′′ long . Almost ...
... nebula . None of the many small nebulae on this plate appear to coincide ... nebula . This region is unusually thick with small nebulae and nebulous stars ... ring 1.8 long . 48 s.n. A small and very faint oval , 20 ′′ long . Almost ...
Page 19
... rings around the nucleus instead of spiral whorls . 31 s.n. Nebulous star . There are two nebulae at this point , about 1 ' apart . The preceding one is very faint , nearly round , 0 : 4 in diameter , structureless . The following one ...
... rings around the nucleus instead of spiral whorls . 31 s.n. Nebulous star . There are two nebulae at this point , about 1 ' apart . The preceding one is very faint , nearly round , 0 : 4 in diameter , structureless . The following one ...
Page 20
... nebula in the position given for 739. This is described as " cF , vS , R , in triangle of stars " ; there is such an object at 1h 51m1 , + 32 ° 46 ' . 37 s.n. Double nebula ... ring about 3 ' x 2 ' in p.a. 150 ° . The spectrum is continuous .
... nebula in the position given for 739. This is described as " cF , vS , R , in triangle of stars " ; there is such an object at 1h 51m1 , + 32 ° 46 ' . 37 s.n. Double nebula ... ring about 3 ' x 2 ' in p.a. 150 ° . The spectrum is continuous .
Page 21
... nebula of two objects which are l ' apart . It is 1 ' long , slightly oval . The nucleus is almost stellar and surrounded by fairly bright matter , from which proceed two faint whorls which form a nearly complete oval ring . The northern ...
... nebula of two objects which are l ' apart . It is 1 ' long , slightly oval . The nucleus is almost stellar and surrounded by fairly bright matter , from which proceed two faint whorls which form a nearly complete oval ring . The northern ...
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Studies of the Nebulae: Made at the Lick Observatory, University ..., Volume 13 Lick Observatory,Joseph Haines Moore Affichage du livre entier - 1918 |
Expressions et termes fréquents
appears bright bands bright lines brighter Campbell N₁ central portion central star continuous spectrum dark lane DETAILS OF OBSERVATION diameter diffuse nebulosity disk edge elongated exposure faint fainter figure g slitless Greater Magellanic Cloud H N₁ N₂ Haynes hydrogen hydrogen lines inclination km./sec Lick Obs LICK OBSERVATORY line Ia long Hẞ M. T. Exp major axis minor axis Miss Hobe N Miss Hobe N₁ moderately bright Moore Miss Hobe Moore N Moore N₁ N₂ N₁ N₂ Hẞ N₂ HB N₂ Hẞ Hy nearly round nucleus band object Orion nebula photographic planetary nebulae radial velocity region relative intensities ring Ring Nebula rotation s.n. Planetary Scott N Scott N₁ Sept Slit long small nebulae spectra spectrograms spiral nebulae spiral structure star of magn stellar condensations stellar nucleus ultra-violet under-exposed wave-lengths whorls Wolf-Rayet Wolf-Rayet stars Ηβ Ηγ