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
27 PLATE XIII N.G.C. 3587; 11 9m.0; +55° 34' The “Owl'' Nebula. Enlarged 4.0
times from a negative of 4" 12" exposure time. The central star is visual magn. 14
(Burnham), and about magn. 12 photographically. The brighter central oval lies in
...
27 PLATE XIII N.G.C. 3587; 11 9m.0; +55° 34' The “Owl'' Nebula. Enlarged 4.0
times from a negative of 4" 12" exposure time. The central star is visual magn. 14
(Burnham), and about magn. 12 photographically. The brighter central oval lies in
...
Page 54
Probably has a central star. Just distinguishable from a star; a minute disk 5” in
diameter, with very faint ansae in 150–330° p.a. Shows in 5" on S23. Rel. Exp. 52
Fig. 62 N.G.C. 6884; 20 7m2; +46° 10' Exposures 10° to 1" 30". H.C.O. magn.
Probably has a central star. Just distinguishable from a star; a minute disk 5” in
diameter, with very faint ansae in 150–330° p.a. Shows in 5" on S23. Rel. Exp. 52
Fig. 62 N.G.C. 6884; 20 7m2; +46° 10' Exposures 10° to 1" 30". H.C.O. magn.
Page 57
PLANETARY FORMS While the details of the forms assumed by individual
planetaries are frequently of bewildering complexity, there are certain
characteristics which are common to many members of the group; the occurrence
of a central star ...
PLANETARY FORMS While the details of the forms assumed by individual
planetaries are frequently of bewildering complexity, there are certain
characteristics which are common to many members of the group; the occurrence
of a central star ...
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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
Informations bibliographiques
| Titre | Studies of the Nebulae: Made at the Lick Observatory, University of California, at Mount Hamilton, California, and Santiago, Chile, Volume 13 Volume 13 de Publications of the Lick Observatory of the University of California Volume 13 de Publications, Lick Observatory Semicentennial publications of the University of California, 1868-1918 Studies of the Nebulae: Made at the Lick Observatory, University of California, at Mount Hamilton, California, and Santiago, Chile, William Wallace Campbell University of California publications |
| Auteurs | Lick Observatory, Heber Doust Curtis, William Wallace Campbell, Joseph Haines Moore, Ralph Elmer Wilson, William Hammond Wright |
| Éditeur | University of California Press, 1918 |
| Original provenant de | l'Université du Michigan |
| Numérisé | 17 mars 2007 |
| Longueur | 268 pages |
| Exporter la citation | BiBTeX EndNote RefMan |