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
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Page 16
... moderately bright nebulae are easily detected at such distances from the optical axis , as they will show fan - shaped images which are as large as those of brighter stars , but much fainter , and of nebular texture , but the very faint ...
... moderately bright nebulae are easily detected at such distances from the optical axis , as they will show fan - shaped images which are as large as those of brighter stars , but much fainter , and of nebular texture , but the very faint ...
Page 18
... fairly bright , p - type spiral , not noted in the N. G. C. Somewhat irregular spiral 1.5 x 0.5 in p . a . 160 ° . Nucleus almost stellar ; a 13 magn . star is close to whorl on north , but probably not physically connected . Planetary ...
... fairly bright , p - type spiral , not noted in the N. G. C. Somewhat irregular spiral 1.5 x 0.5 in p . a . 160 ° . Nucleus almost stellar ; a 13 magn . star is close to whorl on north , but probably not physically connected . Planetary ...
Page 19
... bright , compact , nearly round spiral , 12 in diameter . The nucleus is well defined and shows in a 5m exposure ... moderately bright . Probably spiral ; an absorbing lane is suspected . Slightly oval ; 1 ' long ; nucleus almost stellar ...
... bright , compact , nearly round spiral , 12 in diameter . The nucleus is well defined and shows in a 5m exposure ... moderately bright . Probably spiral ; an absorbing lane is suspected . Slightly oval ; 1 ' long ; nucleus almost stellar ...
Page 21
... fairly bright oval patch nearly 1 ' long . There are several stellar condensa- tions , one at the southern end being brighter than the nucleus ; there are traces of a faint whorl at the southern end . Quite irregular , but un- doubtedly ...
... fairly bright oval patch nearly 1 ' long . There are several stellar condensa- tions , one at the southern end being brighter than the nucleus ; there are traces of a faint whorl at the southern end . Quite irregular , but un- doubtedly ...
Page 23
... bright , diffuse nebulosity covering an area nearly 30 ' x 20 ' . Vol . VIII , plate 12. 0 s.n. Described in the ... Moderately bright diffuse nebulosity of the Pleiades type , filling an area about 6 ' x 3 ' at the southeast of a star ...
... bright , diffuse nebulosity covering an area nearly 30 ' x 20 ' . Vol . VIII , plate 12. 0 s.n. Described in the ... Moderately bright diffuse nebulosity of the Pleiades type , filling an area about 6 ' x 3 ' at the southeast of a star ...
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