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 18
... 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 : 6 long ; almost stellar nucleus . Relatively bright center ; the spiral ...
... 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 : 6 long ; almost stellar nucleus . Relatively bright center ; the spiral ...
Page 19
... Slightly oval ; 1 ' long ; nucleus almost stellar ; no whorls or spiral structure dis- cernible , but is probably a spiral . 46 s.n. Very small ; binuclear . The almost stellar nuclei are 7 ′′ apart in p.a. 142 ° . This is an extremely ...
... Slightly oval ; 1 ' long ; nucleus almost stellar ; no whorls or spiral structure dis- cernible , but is probably a spiral . 46 s.n. Very small ; binuclear . The almost stellar nuclei are 7 ′′ apart in p.a. 142 ° . This is an extremely ...
Page 20
... Slightly oval ; 0.5 in diameter ; quite bright ; no 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 ...
... Slightly oval ; 0.5 in diameter ; quite bright ; no 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 ...
Page 21
... slightly oval . The nucleus is almost stellar and surrounded by fairly bright matter , from which proceed two faint whorls which form a nearly complete oval ring . The northern nebula is a small spindle about 0.5 long . 49 s.n. ...
... slightly oval . The nucleus is almost stellar and surrounded by fairly bright matter , from which proceed two faint whorls which form a nearly complete oval ring . The northern nebula is a small spindle about 0.5 long . 49 s.n. ...
Page 22
... round , almost stellar . Narrow oval 0 : 5 long ; perhaps spiral . 0 : 3 long ; binuclear , or two almost stellar nebulae . Very small ; slightly elongated . Very faint ; diffuse ; a number of stars involved ; about 3 ′ in diameter . 0 ...
... round , almost stellar . Narrow oval 0 : 5 long ; perhaps spiral . 0 : 3 long ; binuclear , or two almost stellar nebulae . Very small ; slightly elongated . Very faint ; diffuse ; a number of stars involved ; about 3 ′ in diameter . 0 ...
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