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 67
... with the line of sight will show a nearly uniform disk , fading out at the edges , similar to those classified in group ( F ) ; compare II 3568 ( 25 ) . ( f ) Spectrographic observations made with the slit along PLANETARY NEBULAE 49 67.
... with the line of sight will show a nearly uniform disk , fading out at the edges , similar to those classified in group ( F ) ; compare II 3568 ( 25 ) . ( f ) Spectrographic observations made with the slit along PLANETARY NEBULAE 49 67.
Page 68
... observations made with the slit along the fainter major axis of plane- taries of this general shape have frequently shown evidence of rotation . So also in spectra taken with the slit placed on the lobes of 7026 ( 71 ) parallel to the ...
... observations made with the slit along the fainter major axis of plane- taries of this general shape have frequently shown evidence of rotation . So also in spectra taken with the slit placed on the lobes of 7026 ( 71 ) parallel to the ...
Page 69
... observations made with the slit placed along or parallel to the major axis of certain planetaries have indicated rotation . It is very unfortunate that it is practically impossible , because of the intrinsic faintness of the nebular ...
... observations made with the slit placed along or parallel to the major axis of certain planetaries have indicated rotation . It is very unfortunate that it is practically impossible , because of the intrinsic faintness of the nebular ...
Page 79
... observations were repeated in several cases in order to increase the accuracy . 6. In searching for evidences of relative motion within the brighter planetary nebulae- requiring the higher dispersions and various position angles of the slit ...
... observations were repeated in several cases in order to increase the accuracy . 6. In searching for evidences of relative motion within the brighter planetary nebulae- requiring the higher dispersions and various position angles of the slit ...
Page 80
... observations but also for many concurrent observations of stellar spectra . It frequently happens that several of ... slit plates to another set of slit plates would call for a full day's work , whereas R E HLUC 10--10- 1 2 3 Fig . 1 ...
... observations but also for many concurrent observations of stellar spectra . It frequently happens that several of ... slit plates to another set of slit plates would call for a full day's work , whereas R E HLUC 10--10- 1 2 3 Fig . 1 ...
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