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 54
In such cases no single photograph of the object will give an adequate
representation of all the details of the nebula. After a number of experiments with
direct enlargements, composite crayon drawings were adopted as the most
satisfactory ...
In such cases no single photograph of the object will give an adequate
representation of all the details of the nebula. After a number of experiments with
direct enlargements, composite crayon drawings were adopted as the most
satisfactory ...
Page 200
3727A gives the largest image and the best defined ring. It is uniform and does
not exhibit any mottling or curdling such as is sometimes found in the
corresponding images of other nebulae. It is more elliptical than the other rings. -
At first ...
3727A gives the largest image and the best defined ring. It is uniform and does
not exhibit any mottling or curdling such as is sometimes found in the
corresponding images of other nebulae. It is more elliptical than the other rings. -
At first ...
Page 260
Furthermore, the former line, and probably the latter, give nebular images of the
smallest size. For example, in N.G.C. 7662 (pl. XLVI, fig. 5) 3426 gives a small
image, while the small 3346 ring can be seen eccentrically situated within the
bright ...
Furthermore, the former line, and probably the latter, give nebular images of the
smallest size. For example, in N.G.C. 7662 (pl. XLVI, fig. 5) 3426 gives a small
image, while the small 3346 ring can be seen eccentrically situated within the
bright ...
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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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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