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 |
À l'intérieur du livre
Page 12
... band of matter extending diametrally across the nucleus and inner parts of the spiral . Frequently the whorls in this type form a nearly perfect ring ; in other examples the whorls appear to begin at the ends of this cross - arm . The ...
... band of matter extending diametrally across the nucleus and inner parts of the spiral . Frequently the whorls in this type form a nearly perfect ring ; in other examples the whorls appear to begin at the ends of this cross - arm . The ...
Page 22
... nucleus is almost stellar ; there are portions of short , strong whorls near the nucleus ; on the periphery are two long , almost detached whorls ; a wide band of faint nebulous matter runs across the center from one whorl to the other ...
... nucleus is almost stellar ; there are portions of short , strong whorls near the nucleus ; on the periphery are two long , almost detached whorls ; a wide band of faint nebulous matter runs across the center from one whorl to the other ...
Page 27
... nucleus . A very open spiral with numerous condensations , and some approach ... band of matter extends across the nebula from one side to the other ; an ... band of matter characteristic of the p - type . Nucleus bright , and stellar ...
... nucleus . A very open spiral with numerous condensations , and some approach ... band of matter extends across the nebula from one side to the other ; an ... band of matter characteristic of the p - type . Nucleus bright , and stellar ...
Page 33
... nucleus . Vol . VIII , Plate 42. A beautiful spiral 5 ' x 4 ' in p.a. 38 ° . Nucleus very bright ; the whorls are on the periphery of the nebula , there being none near the center . A wide faint band of matter lies along the major axis ...
... nucleus . Vol . VIII , Plate 42. A beautiful spiral 5 ' x 4 ' in p.a. 38 ° . Nucleus very bright ; the whorls are on the periphery of the nebula , there being none near the center . A wide faint band of matter lies along the major axis ...
Page 38
... Nucleus fairly large and bright , and the nebular matter in the diametral band is of moderate brightness . The ring formed by the outer whorls is exceedingly faint . 11 s.n. Planetary . Planetary . M. 22. A beautiful globular cluster ...
... Nucleus fairly large and bright , and the nebular matter in the diametral band is of moderate brightness . The ring formed by the outer whorls is exceedingly faint . 11 s.n. Planetary . Planetary . M. 22. A beautiful globular cluster ...
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