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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Résultats 6-10 sur 46
Page 83
... inclination . may be due to : ( 1 ) A rotation of the nebula ; ( 2 ) A non - uniform illumination of the slit ; ( 3 ) Faulty instrumental equipment or adjustments ; or ( 4 ) Two or three of these factors in combination . 7 Pop . Astron ...
... inclination . may be due to : ( 1 ) A rotation of the nebula ; ( 2 ) A non - uniform illumination of the slit ; ( 3 ) Faulty instrumental equipment or adjustments ; or ( 4 ) Two or three of these factors in combination . 7 Pop . Astron ...
Page 84
... inclination of the nebular lines to the zero direction should be reversed for the two positions of the slit . If the ellipticity of the nebular image is controlled wholly or in large measure by the dynamics of rotation , we should ...
... inclination of the nebular lines to the zero direction should be reversed for the two positions of the slit . If the ellipticity of the nebular image is controlled wholly or in large measure by the dynamics of rotation , we should ...
Page 89
... inclination . measures of the angle of inclination of the N , line are briefly summarized in the following table : Length of line Corresponding distance in nebula Date Angle of inclination 1916 Sept. 3 Sept. 4 0:71 0.78 0.26 mm . 574 ...
... inclination . measures of the angle of inclination of the N , line are briefly summarized in the following table : Length of line Corresponding distance in nebula Date Angle of inclination 1916 Sept. 3 Sept. 4 0:71 0.78 0.26 mm . 574 ...
Page 90
... inclination of the line be and the radial velocity at o , from which the velocities at b and c were computed . The results indicate that a point on the major axis 4.4 seconds of arc southwest of the center is receding with respect to ...
... inclination of the line be and the radial velocity at o , from which the velocities at b and c were computed . The results indicate that a point on the major axis 4.4 seconds of arc southwest of the center is receding with respect to ...
Page 93
... inclination of the N , and N. lines . With the slit placed on the short axis of figure ( October 27 , 1916 ) the nebular lines show no perceptible inclination , while on the last plate taken with the slit along the major axis of the ...
... inclination of the N , and N. lines . With the slit placed on the short axis of figure ( October 27 , 1916 ) the nebular lines show no perceptible inclination , while on the last plate taken with the slit along the major axis of the ...
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