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 72
... relative ratio of the number of the planetary nebulae to the number of the stars as a whole , because of our ... velocity . The following short table will serve to show the main data of the space - velocity factor . The Diffuse ...
... relative ratio of the number of the planetary nebulae to the number of the stars as a whole , because of our ... velocity . The following short table will serve to show the main data of the space - velocity factor . The Diffuse ...
Page 73
... velocity which exists between them and the Class B stars ? As matters stand , the planetaries have average space ... relative mass is a contributing , perhaps even the main , factor in the function of space - velocity , rather than ...
... velocity which exists between them and the Class B stars ? As matters stand , the planetaries have average space ... relative mass is a contributing , perhaps even the main , factor in the function of space - velocity , rather than ...
Page 78
... velocity of Keeler's thirteen planetaries was greatly in excess of the average radial velocities of the stars in any ... relative disadvantage in this regard . No doubt a thorough study of the southern nebulae by means of a great reflecting ...
... velocity of Keeler's thirteen planetaries was greatly in excess of the average radial velocities of the stars in any ... relative disadvantage in this regard . No doubt a thorough study of the southern nebulae by means of a great reflecting ...
Page 81
... velocity of each object is not an easy one to answer , partly owing to the ... relative merits of the spectrograms for each object may be read in the ... velocities VELOCITIES OF THE BRIGHT - LINE NEBULAE 81.
... velocity of each object is not an easy one to answer , partly owing to the ... relative merits of the spectrograms for each object may be read in the ... velocities VELOCITIES OF THE BRIGHT - LINE NEBULAE 81.
Page 82
... velocities obtained for each nebula by the two or more plate - measurers will give a fair idea of the relative weights . DIFFERENTIAL MOTIONS WITHIN THE NEBULAE The question of differential motions within the bright - line nebulae has ...
... velocities obtained for each nebula by the two or more plate - measurers will give a fair idea of the relative weights . DIFFERENTIAL MOTIONS WITHIN THE NEBULAE The question of differential motions within the bright - line nebulae has ...
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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