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 |
À l'intérieur du livre
Résultats 1-5 sur 38
Page 22
... nebula . This object is small and ir- regular , and has been uniformly of ... nebula is relatively much brighter than in M. 51. 36 s.n. Planetary . 3 s.n. A ... Orion ; Vol . VIII , Plates 10 and 11. " Circumsitae nebulae descriptio ...
... nebula . This object is small and ir- regular , and has been uniformly of ... nebula is relatively much brighter than in M. 51. 36 s.n. Planetary . 3 s.n. A ... Orion ; Vol . VIII , Plates 10 and 11. " Circumsitae nebulae descriptio ...
Page 59
... Nebula in Orion . The portion used for comparison was a bright patch of nebular matter whose center is about 45 ′′ north preceding the Trapezium ; this patch shows well in 10 on $ 27 . A series of exposures was made of the Orion Nebula ...
... Nebula in Orion . The portion used for comparison was a bright patch of nebular matter whose center is about 45 ′′ north preceding the Trapezium ; this patch shows well in 10 on $ 27 . A series of exposures was made of the Orion Nebula ...
Page 77
... Orion nebula and in the planetary nebula N.G.C. 6572 ( G.C. 4390 , or 26 , R. A. = 18h 7m ) , with reference to the corresponding laboratory line of hydrogen . The measures gave him the radial velocities of the two nebulae , and these ...
... Orion nebula and in the planetary nebula N.G.C. 6572 ( G.C. 4390 , or 26 , R. A. = 18h 7m ) , with reference to the corresponding laboratory line of hydrogen . The measures gave him the radial velocities of the two nebulae , and these ...
Page 82
... Orion nebula , chiefly the region preceding the Trapezium , for local broadenings or distortions of the lines , but with negative results . He estimated that differential radial velocities as great as 8 km . per sec . in the brighter ...
... Orion nebula , chiefly the region preceding the Trapezium , for local broadenings or distortions of the lines , but with negative results . He estimated that differential radial velocities as great as 8 km . per sec . in the brighter ...
Page 83
... Orion nebula early in November , 1914 , as soon as that object came into good observing position . We have continued the observations on the Orion nebula , as opportunity offered , through four successive winters and have recently ...
... Orion nebula early in November , 1914 , as soon as that object came into good observing position . We have continued the observations on the Orion nebula , as opportunity offered , through four successive winters and have recently ...
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