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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Résultats 1-5 sur 31
Page 12
... 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 general appearance is that of the Greek letter , and I have termed such objects p - type spirals , for ...
... 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 general appearance is that of the Greek letter , and I have termed such objects p - type spirals , for ...
Page 18
... Whorls are faint ; the nucleus large and moderately bright . A fine , bright , slightly oval spiral 25 in length . Almost stellar nucleus ; num- erous almost stellar condensations . 17 s.n. A small , bright , very compact oval spiral 0 ...
... Whorls are faint ; the nucleus large and moderately bright . A fine , bright , slightly oval spiral 25 in length . Almost stellar nucleus ; num- erous almost stellar condensations . 17 s.n. A small , bright , very compact oval spiral 0 ...
Page 19
... Whorls somewhat irregular , and indistinct . 22 s.n. Vol . VIII , Plate 2. One of the most beautiful spirals known , 21 ' x 4 ' in p.a. 52 ° . There is perhaps a very faint , almost stellar nucleus and numerous almost stellar ...
... Whorls somewhat irregular , and indistinct . 22 s.n. Vol . VIII , Plate 2. One of the most beautiful spirals known , 21 ' x 4 ' in p.a. 52 ° . There is perhaps a very faint , almost stellar nucleus and numerous almost stellar ...
Page 20
... whorls or structure discernible . A fine , open spiral 35 x 1.8 ; the whorls are very faint ; nucleus almost stellar . 32 s.n. A very compact , fairly bright , two - branched spiral 0 : 5 long . Quite faint ; 3 ' long ; a very ...
... whorls or structure discernible . A fine , open spiral 35 x 1.8 ; the whorls are very faint ; nucleus almost stellar . 32 s.n. A very compact , fairly bright , two - branched spiral 0 : 5 long . Quite faint ; 3 ' long ; a very ...
Page 21
... whorls are very compactly arranged . 11 s.n. - 8 0 A fairly bright , condensed , very patchy spiral 2 : 2 x 0.8 in p.a. 30 ° . Very faint stellar nucleus ; several condensations in the whorls . 14 s.n. 1084 2 41.1 1087 2 41.3 - 0 55 ...
... whorls are very compactly arranged . 11 s.n. - 8 0 A fairly bright , condensed , very patchy spiral 2 : 2 x 0.8 in p.a. 30 ° . Very faint stellar nucleus ; several condensations in the whorls . 14 s.n. 1084 2 41.1 1087 2 41.3 - 0 55 ...
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