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 194
... observation of the distribution of the various lines through- out the nebulae . This phase of the work I have termed the third division . It occupied , almost exclusively , the observing time during the years 1916–17 . To recapitulate ...
... observation of the distribution of the various lines through- out the nebulae . This phase of the work I have termed the third division . It occupied , almost exclusively , the observing time during the years 1916–17 . To recapitulate ...
Page 195
... details of observation as are likely to be required . It has seemed best not to burden the pages with data which ... observation . A majority of the observations were made with the quartz slitless spectrograph ( g ) , and the frequent ...
... details of observation as are likely to be required . It has seemed best not to burden the pages with data which ... observation . A majority of the observations were made with the quartz slitless spectrograph ( g ) , and the frequent ...
Page 196
... observing list : the well known one developed by Miss Cannon ' and a tentative system , described in Chapter V , which the writer has found to be useful . N.G.C. 40 . a = = 0h 76 ; 8 = + 71 ° 32 ′ DETAILS OF OBSERVATION Date Plate No ...
... observing list : the well known one developed by Miss Cannon ' and a tentative system , described in Chapter V , which the writer has found to be useful . N.G.C. 40 . a = = 0h 76 ; 8 = + 71 ° 32 ′ DETAILS OF OBSERVATION Date Plate No ...
Page 198
... DETAILS OF OBSERVATION Date 1916 Nov. 24.80 Plate No. 800 1917 Sept. 16.90 865 Instrument Exposure time g ( slitless ) 2h 0m g ( slitless ) 4 0 A small elliptical ring with a very faint nucleus . The object is too faint to furnish ...
... DETAILS OF OBSERVATION Date 1916 Nov. 24.80 Plate No. 800 1917 Sept. 16.90 865 Instrument Exposure time g ( slitless ) 2h 0m g ( slitless ) 4 0 A small elliptical ring with a very faint nucleus . The object is too faint to furnish ...
Page 199
... DETAILS OF OBSERVATION Date Plate No. Instrument Exposure time Region of Spectrum 1914 Dec. 7.83 Dec. 22.76 1916 Sept. 26.98 777 683 684 a 4h 30m blue - violet i g ( slitless ) 5 0 2 50 blue - violet ultra - violet A slightly elliptical ...
... DETAILS OF OBSERVATION Date Plate No. Instrument Exposure time Region of Spectrum 1914 Dec. 7.83 Dec. 22.76 1916 Sept. 26.98 777 683 684 a 4h 30m blue - violet i g ( slitless ) 5 0 2 50 blue - violet ultra - violet A slightly elliptical ...
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