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 |
À l'intérieur du livre
Résultats 1-5 sur 84
Page 59
... spectrograms , and elsewhere in this volume Professor Wright shows spectro- graphic evidences of remarkable differences in distribution or condition of the various sorts of matter composing certain of the planetaries . Where the ...
... spectrograms , and elsewhere in this volume Professor Wright shows spectro- graphic evidences of remarkable differences in distribution or condition of the various sorts of matter composing certain of the planetaries . Where the ...
Page 79
... spectrograms , and a considerable number of these were repeated under better conditions . The observations in Chile began with a spectrograph of one 632 ° dense - flint prism ( Jena glass 0.102 ) and an 18 - inch camera , attached to ...
... spectrograms , and a considerable number of these were repeated under better conditions . The observations in Chile began with a spectrograph of one 632 ° dense - flint prism ( Jena glass 0.102 ) and an 18 - inch camera , attached to ...
Page 81
... spectrograms obtained with the latter combinations amounts to as much as 1 km . per sec . PROBABLE ERRORS OF THE RESULTS - The question of the probable error of the observed velocity of each object is not an easy one to answer , partly ...
... spectrograms obtained with the latter combinations amounts to as much as 1 km . per sec . PROBABLE ERRORS OF THE RESULTS - The question of the probable error of the observed velocity of each object is not an easy one to answer , partly ...
Page 82
... spectrograms secured with this combination is not so good as it should be , and a great many of the spectrograms are under- exposed . An examination of the radial velocities obtained for each nebula by the two or more plate - measurers ...
... spectrograms secured with this combination is not so good as it should be , and a great many of the spectrograms are under- exposed . An examination of the radial velocities obtained for each nebula by the two or more plate - measurers ...
Page 83
... spectro- grams of the brighter regions of the Orion nebula , in January - March , 1915. Their observed velocities vary ... spectrograms secured with the 3 - prism and 16 - inch camera combination were yielding radial velocities of great ...
... spectro- grams of the brighter regions of the Orion nebula , in January - March , 1915. Their observed velocities vary ... spectrograms secured with the 3 - prism and 16 - inch camera combination were yielding radial velocities of great ...
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