Monthly Notices of the Royal Astronomical Society, Volume 68; Volumes 1907-1908Priestley and Weale, 1908 Includes lists of additions to the society's library, usually separately paged. |
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Page 16
... interest to place on record . A prismatic camera was constructed with the two very perfect 60 ° prisms , of specially selected crown glass , which were successfully used at recent eclipses . The prisms have an effective aperture of 42 ...
... interest to place on record . A prismatic camera was constructed with the two very perfect 60 ° prisms , of specially selected crown glass , which were successfully used at recent eclipses . The prisms have an effective aperture of 42 ...
Page 24
... interest- ing point to which attention may be called is the fact that none of the lines of crystals cross each other : this can be observed in several instances in fig . 4 ( Plate 3 ) where these lines approach each other . Further ...
... interest- ing point to which attention may be called is the fact that none of the lines of crystals cross each other : this can be observed in several instances in fig . 4 ( Plate 3 ) where these lines approach each other . Further ...
Page 28
... interest- ing question . In the first place , I would like to point out that the dates of mounting the instrument given by Dr. Lockyer are not the dates on which the objectives were put together , so that , correctly , at least 12 ...
... interest- ing question . In the first place , I would like to point out that the dates of mounting the instrument given by Dr. Lockyer are not the dates on which the objectives were put together , so that , correctly , at least 12 ...
Page 68
... interest to study the structure of the umbra , as seen through a minute pin - hole in the focal plane of a positive eyepiece , as Dawes did many years ago . It must not be forgotten that photography is still far behind visual ...
... interest to study the structure of the umbra , as seen through a minute pin - hole in the focal plane of a positive eyepiece , as Dawes did many years ago . It must not be forgotten that photography is still far behind visual ...
Page 76
... interest could be carried on with such a spectroheliograph as I have described . I wish I had time to go into them ; there is only one I may mention , and that is the comparison of the calcium and the hydrogen images . Mr. Butler has ...
... interest could be carried on with such a spectroheliograph as I have described . I wish I had time to go into them ; there is only one I may mention , and that is the comparison of the calcium and the hydrogen images . Mr. Butler has ...
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Common terms and phrases
angle appear Astrographic axis bright brighter Cape Catalogue centre coefficient colour column comet comparison stars computed corrections correlation curve cyanogen David Gill deduced determination distance Double Stars drift E. E. Barnard Earth eclipse epoch equation equatorial faint formula give given Greenwich groups heliometer instrument Julian Day Jupiter latitude lens Lick Observatory limb lines longitude magnitude Max Wolf mean measures meridian method Monthly Notices Moon nebula nucleus number of stars observations obtained orbit outer condensation paper parallax Paris perihelion perihelion passage period perturbations photographs planet plates position present Professor proper motion reduced reflector refraction refractor region right ascension ring Royal Observatory satellite Saturn seen Sept solar spectra spectral class spectroheliograph spectroscope spectrum spot stellar sun-spot Sun's surface Table telescope tion variable Yerkes Observatory zone ΙΟ