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 11
... effects . These have been discussed , and seventy - nine illustrations reproduced in a separate paper in this volume , " A Study of Occulting Matter in the Spiral Nebulae . " The phrase , " See Abs . Eff . " in the description ...
... effects . These have been discussed , and seventy - nine illustrations reproduced in a separate paper in this volume , " A Study of Occulting Matter in the Spiral Nebulae . " The phrase , " See Abs . Eff . " in the description ...
Page 12
... effect are seen in many nebulae . Its main characteristic is a band of matter extending diametrally across the nucleus and inner parts of the spiral . Frequently the whorls in this type form a nearly perfect ring ; in other examples the ...
... effect are seen in many nebulae . Its main characteristic is a band of matter extending diametrally across the nucleus and inner parts of the spiral . Frequently the whorls in this type form a nearly perfect ring ; in other examples the ...
Page 14
... effect of unduly increasing the estimated number of the small spirals . This objection was urged by Fath ( loc . cit . ) in explanation of the difference between his estimate of 162,000 and that of 500,000 by Perrine ; on plotting the ...
... effect of unduly increasing the estimated number of the small spirals . This objection was urged by Fath ( loc . cit . ) in explanation of the difference between his estimate of 162,000 and that of 500,000 by Perrine ; on plotting the ...
Page 15
... effect of this concentration in the galactic north polar area , it will be advisable to consider this area ... effects of a marked concentration of the small nebulae in the north galactic area may be further met by considering separately ...
... effect of this concentration in the galactic north polar area , it will be advisable to consider this area ... effects of a marked concentration of the small nebulae in the north galactic area may be further met by considering separately ...
Page 17
... effect of the larger distortions in the outer regions of the plate . From my own experience in counting these minute objects on the Crossley plates it would appear to me that the actual affective area used by Fath must have been very ...
... effect of the larger distortions in the outer regions of the plate . From my own experience in counting these minute objects on the Crossley plates it would appear to me that the actual affective area used by Fath must have been very ...
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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