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 195
... slitless spectrograph ( g ) , and the frequent references to the " images " refer to the monochromatic images given by each line in the spectrum of the nebula . The dates given are in Greenwich Mean Time . LIST OF NEBULAE OBSERVED ...
... slitless spectrograph ( g ) , and the frequent references to the " images " refer to the monochromatic images given by each line in the spectrum of the nebula . The dates given are in Greenwich Mean Time . LIST OF NEBULAE OBSERVED ...
Page 196
... g ( slitless ) 4 0 ultra - violet A large dim nebula , nearly circular in outline , brightest at the outer edge , and showing con- siderable structure . There is a comparatively bright central star , or nucleus . The character of the ...
... g ( slitless ) 4 0 ultra - violet A large dim nebula , nearly circular in outline , brightest at the outer edge , and showing con- siderable structure . There is a comparatively bright central star , or nucleus . The character of the ...
Page 198
... g ( slitless ) 2h 0m g ( slitless ) 4 0 A small elliptical ring with a very faint nucleus . The object is too faint to furnish intensity measurements of much value , the line H8 , for instance , being barely discernible on the stronger ...
... g ( slitless ) 2h 0m g ( slitless ) 4 0 A small elliptical ring with a very faint nucleus . The object is too faint to furnish intensity measurements of much value , the line H8 , for instance , being barely discernible on the stronger ...
Page 199
... ( slitless ) 5 0 2 50 blue - violet ultra - violet A slightly elliptical ring lying on a uniformly illuminated ... g ( slitless ) Oct. 25.94 788D g ( slitless ) Oct. 25.97 789 g ( slitless ) 1917 Oct. 27.00 877 g ( slitless ) * 2 1600012 ...
... ( slitless ) 5 0 2 50 blue - violet ultra - violet A slightly elliptical ring lying on a uniformly illuminated ... g ( slitless ) Oct. 25.94 788D g ( slitless ) Oct. 25.97 789 g ( slitless ) 1917 Oct. 27.00 877 g ( slitless ) * 2 1600012 ...
Page 202
... ( slitless ) 4h 0m An elliptical ring nebula resembling , somewhat , in general appearance N.G.C. 7009 and N.G.C. 7662 ... g ( slitless ) g ( slitless ) Exposure time 3h ( m 1 0 A small , very much elongated elliptical nebula . The 202 ...
... ( slitless ) 4h 0m An elliptical ring nebula resembling , somewhat , in general appearance N.G.C. 7009 and N.G.C. 7662 ... g ( slitless ) g ( slitless ) Exposure time 3h ( m 1 0 A small , very much elongated elliptical nebula . The 202 ...
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