Publications of the Astronomical Society of the Pacific, Volume 9Astronomical Society of the Pacific., 1897 |
From inside the book
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Page 30
... spectroscope , a ZOELLNER astro - photometer and a very complete set of oculars . The small equatorial in the Students ' Observatory , shown in the accompanying cut , has been provided with a modified LOEWY prism apparatus and employed ...
... spectroscope , a ZOELLNER astro - photometer and a very complete set of oculars . The small equatorial in the Students ' Observatory , shown in the accompanying cut , has been provided with a modified LOEWY prism apparatus and employed ...
Page 77
... spectro- scope of 14,438 lines to the inch . During the year 1896 the appearance and approximate position and size of each sun - spot group and facula have been sketched daily on sheets of paper containing a three - inch ruled circle ...
... spectro- scope of 14,438 lines to the inch . During the year 1896 the appearance and approximate position and size of each sun - spot group and facula have been sketched daily on sheets of paper containing a three - inch ruled circle ...
Page 109
... spectroscope was able to detect evidence of atmosphere containing water - vapor . Their results supported the popular side of the question , and were accepted without reserve . Their observations were nearly all made under extremely ...
... spectroscope was able to detect evidence of atmosphere containing water - vapor . Their results supported the popular side of the question , and were accepted without reserve . Their observations were nearly all made under extremely ...
Page 132
... spectroscope , having two three - inch prisms of sixty degrees , will also be used . The method of observation with all three instruments will , of course , be photographic , a long series of photographs of varying exposures being used ...
... spectroscope , having two three - inch prisms of sixty degrees , will also be used . The method of observation with all three instruments will , of course , be photographic , a long series of photographs of varying exposures being used ...
Page 133
... spectroscope , with 31⁄2 - inch lenses , and two light flint prisms of sixty degrees , and a grating spectroscope , to be used without a slit . The Astronomical Society of the Pacific . 133.
... spectroscope , with 31⁄2 - inch lenses , and two light flint prisms of sixty degrees , and a grating spectroscope , to be used without a slit . The Astronomical Society of the Pacific . 133.
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Common terms and phrases
aperture April Arcturian Astronomical Society Atlas atmosphere August Board of Directors bright BRUCE Medal C. D. PERRINE Capellan carbonic acid catalogue comet Comet-Medal Committee Committee-Messrs constellation December Decl Declination degrees eastward diameter dome eclipse EDWARD equatorial F. R. ZIEL feet Greenwich Hamilton Harvard College Observatory HOLDEN inches instruments interstellar medium January July June Jupiter latitude LEWIS SWIFT Library Lick Observatory longitude magnitude March Mars meeting Mercury meridian Messrs meteor minutes Miss O'HALLORAN MOLERA month Moon morning star motion Mount Hamilton moves nebulæ Neptune November Oakland observations October Pacific penumbra photographic planets plates President prisms Prof Professor proper-motion Publications quantity of carbonic R. G. AITKEN San Francisco Saturn SCHAEBERLE Secretary seen Sept September Shadow touching Sirian solar spectra spectroscope sun-spot telescope tion Transit umbra University Observatory Uranus Venus W. H. S. MONCK WILLIAM ALVORD Yerkes Observatory Yerkes telescope ΙΟ