Studies of the Nebulae: Made at the Lick Observatory, University of California, at Mount Hamilton, California, and Santiago, Chile, Volume 13Lick Observatory, Heber Doust Curtis, William Wallace Campbell, Joseph Haines Moore, Ralph Elmer Wilson, William Hammond Wright University of California Press, 1918 - 268 pages |
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Page 26
Quite patchy and irregular; probably a very irregular spiral, though the traces of
spiral structure are very vague. 3 s.n. Vol. VIII, Plate 22. An exceedingly bright
spindle 4” x 1' in p.a. 45°, with an almost spherical central portion; no stellar
nucleus ...
Quite patchy and irregular; probably a very irregular spiral, though the traces of
spiral structure are very vague. 3 s.n. Vol. VIII, Plate 22. An exceedingly bright
spindle 4” x 1' in p.a. 45°, with an almost spherical central portion; no stellar
nucleus ...
Page 42
No trace in an exposure of 2* 10". 0 s.n. Bright elongated patch of nebulosity 0.3
long. It is trinuclear; perhaps a very irregular spiral. It is 1' beyond the longest
whorl of 7753, and strongly suggest a satellite nebula, as in the case of M. 51.
No trace in an exposure of 2* 10". 0 s.n. Bright elongated patch of nebulosity 0.3
long. It is trinuclear; perhaps a very irregular spiral. It is 1' beyond the longest
whorl of 7753, and strongly suggest a satellite nebula, as in the case of M. 51.
Page 101
No trace of N, N. V. small wt. Aa —2.0, A5 —3.0. Lines not well defined. 10 : 3 : 15
- Aa —1:6, A6 0:0. Good lines. 10 : 3: 5 Aa +2.0, A3 —0.5. Good lines. 10:3:10 Aa
0:0, A3 —1:6. Good lines. 10: 3: 9 Aa +3:6, A6 +7:4; detached nebulosity.
No trace of N, N. V. small wt. Aa —2.0, A5 —3.0. Lines not well defined. 10 : 3 : 15
- Aa —1:6, A6 0:0. Good lines. 10 : 3: 5 Aa +2.0, A3 —0.5. Good lines. 10:3:10 Aa
0:0, A3 —1:6. Good lines. 10: 3: 9 Aa +3:6, A6 +7:4; detached nebulosity.
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Table des matières
PART IIA Study of Occulting Matter in the spiral Nebulae by H D Curtis Page | 43 |
The Planetary Nebulae by H D Curtis Page | 55 |
PART IVThe Spectrographic Velocities of the BrightLine Nebulae by W W Campbell and J H Moore Page | 75 |
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Autres éditions - Tout afficher
Studies of the Nebulae: Made at the Lick Observatory, University ..., Volume 13 Lick Observatory Affichage du livre entier - 1918 |
Expressions et termes fréquents
angle appears band bright bright lines brighter Campbell central central star Class Cloud components considerable corresponding dark DETAILS diameter direction edge effect elongated ends evidence exposure extends fact faint fainter figure g slitless give given Hobe Moore Miss hydrogen inclination indicated intensity irregular July June lane length M. T. Exp magn major axis matter mean Measurer minor Miss Hobe Moore Moore Miss Hobe Moore N. N. nearly nebula nebular lines nebulosity nucleus object observed obtained oval photographic placed planetary planetary nebulae plate portion position present probably radial velocity recorded reference region relative Remarks respect ring rotation round Scott Sept short shown side slightly slit spectra spectrograms spectrum spiral star stellar stellar nucleus strong structure trace ultra-violet visible whorls Wilson