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 35
... disk is of nearly equal brightness throughout ; there are no condensations . 16 s.n. A faint oval patch 0 : 4 long ; no structure apparent , but doubtless spiral . Nearly round ; about 14 in diameter ; very faint on the periphery ...
... disk is of nearly equal brightness throughout ; there are no condensations . 16 s.n. A faint oval patch 0 : 4 long ; no structure apparent , but doubtless spiral . Nearly round ; about 14 in diameter ; very faint on the periphery ...
Page 25
... disk 13 " in diameter , with an indistinct ring effect , strongest on north and south and fading out along an axis in p . a . 90 ° . Brighter parts of ring show in 3m on S23 . Rel . Exp . 15 . Fig . 5 20- > PLATE IX N.G.C. I 351. Fig . 4 ...
... disk 13 " in diameter , with an indistinct ring effect , strongest on north and south and fading out along an axis in p . a . 90 ° . Brighter parts of ring show in 3m on S23 . Rel . Exp . 15 . Fig . 5 20- > PLATE IX N.G.C. I 351. Fig . 4 ...
Page 27
... disk , which is 8 " X 6 " in p . a . 10 ° in a 5 " exposure . An elongated brighter patch is in the center . Quite bright ; the central portions just show in 30 % on S23 . Rel . Exp . 2 . Fig . 6 Fig . 6a Fig . 7 N.G.C. 1501 ; 3h 58m4 ...
... disk , which is 8 " X 6 " in p . a . 10 ° in a 5 " exposure . An elongated brighter patch is in the center . Quite bright ; the central portions just show in 30 % on S23 . Rel . Exp . 2 . Fig . 6 Fig . 6a Fig . 7 N.G.C. 1501 ; 3h 58m4 ...
Page 29
... disk of fainter matter 28 " X 27 " . The brightest parts are the two masses at the ends of the major axis of the inner ring . Bright ; the ring shows in 1 " on S23 . Rel . Exp . 5 . 10 Fig . 13 N.G.C. II 2149 ; 5h 48m9 ; + 46 ° 6 ...
... disk of fainter matter 28 " X 27 " . The brightest parts are the two masses at the ends of the major axis of the inner ring . Bright ; the ring shows in 1 " on S23 . Rel . Exp . 5 . 10 Fig . 13 N.G.C. II 2149 ; 5h 48m9 ; + 46 ° 6 ...
Page 31
... disk 9 " X 7 " in p . a . 81 ° . The disk is of nearly equal brightness throughout , but with just a trace of ring structure , and shows slightly fainter along the major axis . Very bright ; shows in 10s on $ 27 . Rel . Exp . 0.3 ...
... disk 9 " X 7 " in p . a . 81 ° . The disk is of nearly equal brightness throughout , but with just a trace of ring structure , and shows slightly fainter along the major axis . Very bright ; shows in 10s on $ 27 . Rel . Exp . 0.3 ...
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