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
... nebulous stars : several of these are small spirals . N. G. C. 67 , 69-72 , and 75 are all small nebulae or nebulous stars . 98 s.n. A small area of diffuse nebulosity about 3 ' x 2 ' ; very patchy , with a number of nebulous ...
... nebulous stars : several of these are small spirals . N. G. C. 67 , 69-72 , and 75 are all small nebulae or nebulous stars . 98 s.n. A small area of diffuse nebulosity about 3 ' x 2 ' ; very patchy , with a number of nebulous ...
Page 19
... diffuse , irregular nebulosity 16 ' across . Shows con- siderable detail and a clearly defined " hole " with clear - cut edges . A large " bay " cuts into the s.p. side . 1 s.n. Two enormous , fan - shaped masses of diffuse nebulosity ...
... diffuse , irregular nebulosity 16 ' across . Shows con- siderable detail and a clearly defined " hole " with clear - cut edges . A large " bay " cuts into the s.p. side . 1 s.n. Two enormous , fan - shaped masses of diffuse nebulosity ...
Page 20
... diffuse nebulosity , with some slight structural detail , shows over an area perhaps 12 ' square , involved in a sparse , open cluster . 0 s.n. N.G.C. a δ 949 2 24.7 +36 42 972 2 20 PUBLICATIONS OF THE LICK OBSERVATORY 06.
... diffuse nebulosity , with some slight structural detail , shows over an area perhaps 12 ' square , involved in a sparse , open cluster . 0 s.n. N.G.C. a δ 949 2 24.7 +36 42 972 2 20 PUBLICATIONS OF THE LICK OBSERVATORY 06.
Page 21
... nebulosity 5 ' long attached on the s.p. side to a 6.2 magn . star . An ... diffuse " type , but , if a spiral , is of exceedingly irregular form . 9 ... diffuse nebulosity which appeared about this star in 1901 , showing movement , has ...
... nebulosity 5 ' long attached on the s.p. side to a 6.2 magn . star . An ... diffuse " type , but , if a spiral , is of exceedingly irregular form . 9 ... diffuse nebulosity which appeared about this star in 1901 , showing movement , has ...
Page 22
... diffuse nebulosity , 30 ′ long in its brighter por- tion , 3 ' to 5 ' wide , elongated in 135 ° . Much fainter ... diffuse nebulosity about 5 ' in diameter . Main portion somewhat resembles an . Exceedingly faint diffuse nebu- losity ...
... diffuse nebulosity , 30 ′ long in its brighter por- tion , 3 ' to 5 ' wide , elongated in 135 ° . Much fainter ... diffuse nebulosity about 5 ' in diameter . Main portion somewhat resembles an . Exceedingly faint diffuse nebu- losity ...
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