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 24
... major axis to the s . It is perhaps a spiral consisting of a single whorl , obliterated at the southern end by occulting matter ; this whorl gives it the appearance of an oval ring . It is astonishingly like a planetary in its general ...
... major axis to the s . It is perhaps a spiral consisting of a single whorl , obliterated at the southern end by occulting matter ; this whorl gives it the appearance of an oval ring . It is astonishingly like a planetary in its general ...
Page 26
... axis . It is possibly a very irregular spiral seen edgewise . Exceedingly bright ; the brighter condensations show ... Major , cf. Publ . Astr . Soc . Pac . , 16 , 123 , 1893 . Exceedingly faint , scattered condensations covering an area ...
... axis . It is possibly a very irregular spiral seen edgewise . Exceedingly bright ; the brighter condensations show ... Major , cf. Publ . Astr . Soc . Pac . , 16 , 123 , 1893 . Exceedingly faint , scattered condensations covering an area ...
Page 27
... axis , and fade out at the ends of the major axis . 2 ' long , somewhat oval ; a p - type spiral with a very bright , round nucleus . 9 s.n. A small , rather regular , rather faint spiral , 1 ' in diameter , with a sharp stellar nucleus ...
... axis , and fade out at the ends of the major axis . 2 ' long , somewhat oval ; a p - type spiral with a very bright , round nucleus . 9 s.n. A small , rather regular , rather faint spiral , 1 ' in diameter , with a sharp stellar nucleus ...
Page 29
... major axis . It some- what resembles the planetary type , and the observations of Messrs . Camp- bell and Paddock show that the nucleus has bright lines in its spectrum . It is undoubtedly a spiral , however . 40 s.n. A small , rather ...
... major axis . It some- what resembles the planetary type , and the observations of Messrs . Camp- bell and Paddock show that the nucleus has bright lines in its spectrum . It is undoubtedly a spiral , however . 40 s.n. A small , rather ...
Page 30
... major axis . See Abs . Eff . An irregular spiral 1 : 8 x 0.8 . A bright , somewhat irregular streak lies along the major axis in p.a. 100 ° . Most of the nebular matter lies at the ends of the major axis , and there is evidence of ...
... major axis . See Abs . Eff . An irregular spiral 1 : 8 x 0.8 . A bright , somewhat irregular streak lies along the major axis in p.a. 100 ° . Most of the nebular matter lies at the ends of the major axis , and there is evidence of ...
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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