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 22
... nebula . This object is small and ir- regular , and has been uniformly of ... nebula is relatively much brighter than in M. 51. 36 s.n. Planetary . 3 s.n. A ... ring , rounded at the southern end and pointed at the northern end , which ...
... nebula . This object is small and ir- regular , and has been uniformly of ... nebula is relatively much brighter than in M. 51. 36 s.n. Planetary . 3 s.n. A ... ring , rounded at the southern end and pointed at the northern end , which ...
Page 23
... nebula of the Merope type with e Orionis at the n.p. end . It would seem ... nebula . " 0 s.n. Large , fairly bright ; exceedingly irregular , with curious loops ... ring 40 ' in diameter ; the negative shows but little resemblance to the ...
... nebula of the Merope type with e Orionis at the n.p. end . It would seem ... nebula . " 0 s.n. Large , fairly bright ; exceedingly irregular , with curious loops ... ring 40 ' in diameter ; the negative shows but little resemblance to the ...
Page 24
... Nebula near 15 Monocerotis . A very interesting region . The brighter ... nebula lies in a well - marked rift about 20 ' wide and at least a degree long , extending ... ring . It is astonishingly like a planetary in its general form , but ...
... Nebula near 15 Monocerotis . A very interesting region . The brighter ... nebula lies in a well - marked rift about 20 ' wide and at least a degree long , extending ... ring . It is astonishingly like a planetary in its general form , but ...
Page 27
... ring ; a wide band of matter extends across the nebula from one side to the other ; an example of the p - type spiral . The center is exceedingly bright , and of unusual structure . It is about 12 " in diameter , and appears trinuclear ...
... ring ; a wide band of matter extends across the nebula from one side to the other ; an example of the p - type spiral . The center is exceedingly bright , and of unusual structure . It is about 12 " in diameter , and appears trinuclear ...
Page 28
... ring . A slightly oval , rather patchy spiral 12 long ; fairly bright nucleus . A fine , rather open , nearly round spiral , 2 ' in diameter . Stellar nucleus magn . 12-13 ; the two main whorls show numerous almost stellar condensations ...
... ring . A slightly oval , rather patchy spiral 12 long ; fairly bright nucleus . A fine , rather open , nearly round spiral , 2 ' in diameter . Stellar nucleus magn . 12-13 ; the two main whorls show numerous almost stellar condensations ...
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