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
... appear as textureless disks or ovals solely because of their small size . Were the Great Nebula in Andromeda situated five hundred times as far away as at present , it would appear as a structureless oval about 0 : 2 long , with very ...
... appear as textureless disks or ovals solely because of their small size . Were the Great Nebula in Andromeda situated five hundred times as far away as at present , it would appear as a structureless oval about 0 : 2 long , with very ...
Page 16
... appears that he used nearly the full area , inasmuch as he states that the area of his plates was 1.88 square degrees . As the full exposed area of the Crossley plate is 0.9 square degrees ( and the outer regions of this are so poor ...
... appears that he used nearly the full area , inasmuch as he states that the area of his plates was 1.88 square degrees . As the full exposed area of the Crossley plate is 0.9 square degrees ( and the outer regions of this are so poor ...
Page 17
... appear that this increase in scale could counterbalance the effect of the larger distortions in the outer regions of the plate . From my own experience in counting these minute objects on the Crossley plates it would appear to me that ...
... appear that this increase in scale could counterbalance the effect of the larger distortions in the outer regions of the plate . From my own experience in counting these minute objects on the Crossley plates it would appear to me that ...
Page 18
... appears to be an irregular spiral . The nebular matter is faint and diffuse . A star of magn . 14 is north of the very faint nucleus . 30 s.n. Nearly round ; 0.5 in diameter ; much stronger center ; probably spiral . Round ; 0 : 3 in ...
... appears to be an irregular spiral . The nebular matter is faint and diffuse . A star of magn . 14 is north of the very faint nucleus . 30 s.n. Nearly round ; 0.5 in diameter ; much stronger center ; probably spiral . Round ; 0 : 3 in ...
Page 21
... appears to be the larger and more southerly 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 ...
... appears to be the larger and more southerly 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 ...
Autres éditions - Tout afficher
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