Lick Observatory Bulletins, Volume 9Lick Observatory, University of California, 1918 - Astronomy |
From inside the book
Results 1-5 of 38
Page
... prisms , in a new prism box , have been set at minimum deviation for 4950A . The linear dispersion at the Hẞ line , which is central on the plate , is 1 mm . equals 20A . The spectrograph is provided with a con- 1 Ap . Jour . , 8 , 123 ...
... prisms , in a new prism box , have been set at minimum deviation for 4950A . The linear dispersion at the Hẞ line , which is central on the plate , is 1 mm . equals 20A . The spectrograph is provided with a con- 1 Ap . Jour . , 8 , 123 ...
Page 6
... prism box , to receive the three Mills prisms at minimum deviation for 4950A , for use in photographing the green - blue nebu- lar lines under high angular dispersion . Equipped further , with a camera of focal length 126 mm . ( 4.96 ...
... prism box , to receive the three Mills prisms at minimum deviation for 4950A , for use in photographing the green - blue nebu- lar lines under high angular dispersion . Equipped further , with a camera of focal length 126 mm . ( 4.96 ...
Page 9
... prism dispersion , and two with 3 - prism dispersion . In reality , the first of the 3 - prism plates , according to Hartmann's description of the Hẞ line ( " a very weak trace of Hẞ " ) , should be discarded , inasmuch as the wave ...
... prism dispersion , and two with 3 - prism dispersion . In reality , the first of the 3 - prism plates , according to Hartmann's description of the Hẞ line ( " a very weak trace of Hẞ " ) , should be discarded , inasmuch as the wave ...
Page 10
... prisms , in a different mounting , and in two cases with a grating . The dis- crepancy between our respective values is of the order of twice the probable error , which may be considered a not unsatisfactory agreement between ...
... prisms , in a different mounting , and in two cases with a grating . The dis- crepancy between our respective values is of the order of twice the probable error , which may be considered a not unsatisfactory agreement between ...
Page 23
... prism Mills spectrograph on the nights of February 1 , 13 and 14 , 1916 , by Messrs . J. H. Moore , G. F. Paddock and W. K. Green . The photographs , on Seed 23 plates , are of high quality , essentially perfect in all respects . They ...
... prism Mills spectrograph on the nights of February 1 , 13 and 14 , 1916 , by Messrs . J. H. Moore , G. F. Paddock and W. K. Green . The photographs , on Seed 23 plates , are of high quality , essentially perfect in all respects . They ...
Other editions - View all
Common terms and phrases
A.G. Leipzig angle apparent April ASTRONOMY LICK OBSERVATORY axis band Barnard Biesbroeck bright bright band brighter CALIFORNIA PUBLICATIONS ASTRONOMY catalogues center of mass Class column comet comparison stars computed coördinates Cordoba correction derived diaphragm difference distance Durchmusterung elements ephemeris epoch exposure faint fainter galactic Galaxy give grades GREENWICH MEAN helium Hẞ June km./sec Lick Obs LICK OBSERVATORY BULLETIN magnitude equation maximum mean measures Milky Mills Expedition Miss Hobe Moore Mount Hamilton N₁ N₂ ninth magnitude nova OBSERVATORY BULLETIN NUMBER obtained orbit parallax period photographic photometric planetary nebulae plates position prism probable error proper motion Publ PUBLICATIONS ASTRONOMY LICK radial velocities refraction right ascension scale screen values Sept slit spectra spectrograms spectroscopic binary spectrum spiral nebulae tabulated telescope tion unit light ratio variation velocity curve visual visual magnitude wave-lengths width Wilson zenith zone Δα