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 16
... edge strips of the Crossley plates . But the greater focal ratio of the 60 - inch would increase this disadvantage , even allowing for certain advantages which would partially counterbalance this due to the greater linear scale of the ...
... edge strips of the Crossley plates . But the greater focal ratio of the 60 - inch would increase this disadvantage , even allowing for certain advantages which would partially counterbalance this due to the greater linear scale of the ...
Page 17
... of a field 2 ° in diameter ; the latter will show images on the edge of the same field so broadened and distorted as to be absolutely unusable . DESCRIPTION N.G.C. α δ 20 Oh 4m4 + 32 ° DESCRIPTIONS OF 762 NEBULAE AND CLUSTERS 17.
... of a field 2 ° in diameter ; the latter will show images on the edge of the same field so broadened and distorted as to be absolutely unusable . DESCRIPTION N.G.C. α δ 20 Oh 4m4 + 32 ° DESCRIPTIONS OF 762 NEBULAE AND CLUSTERS 17.
Page 23
... edge of the illustration , is Orionis , to the east of which lies the beautiful mass of diffuse nebu- losity , 2024. This is shown in Vol . VIII , Plate 13 ; it covers an area about 20 ' x 16 ' ; shows a wealth of structural detail ...
... edge of the illustration , is Orionis , to the east of which lies the beautiful mass of diffuse nebu- losity , 2024. This is shown in Vol . VIII , Plate 13 ; it covers an area about 20 ' x 16 ' ; shows a wealth of structural detail ...
Page 24
... edge , which shows well in a 2m exposure . See Figure 6. 26 s.n. 3 A very narrow spindle 5 ' long in p.a. 17 ° . An edgewise spiral ; the faint nucleus is displaced to one side , and there is evidence of an absorbing lane . 2359 7 12.9 ...
... edge , which shows well in a 2m exposure . See Figure 6. 26 s.n. 3 A very narrow spindle 5 ' long in p.a. 17 ° . An edgewise spiral ; the faint nucleus is displaced to one side , and there is evidence of an absorbing lane . 2359 7 12.9 ...
Page 30
... edge ; no true nucleus . The position is for 4409 , while the description ac- cords with that for 4420 ; there is no object in the position given for 4420 . 9 s.n. 4340 12 18.5 4350 12 18.9 4361 12 19.4 4374 12 20.0 4382 12 20.3 4383 12 ...
... edge ; no true nucleus . The position is for 4409 , while the description ac- cords with that for 4420 ; there is no object in the position given for 4420 . 9 s.n. 4340 12 18.5 4350 12 18.9 4361 12 19.4 4374 12 20.0 4382 12 20.3 4383 12 ...
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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