Publications of the Astronomical Society of the Pacific, Volume 9Astronomical Society of the Pacific., 1897 |
From inside the book
Results 1-5 of 20
Page v
... Objective of the Potsdam Observatory . R. G. A .. Awards of the Comet - Medal of the Astronomical Society of the Pacific .. Memorials of WILLIAM CRANCH BOND , and of His Son , GEORGE PHILLIPS BOND , by EDWARD S. HOLDEN . E. S. H. ...
... Objective of the Potsdam Observatory . R. G. A .. Awards of the Comet - Medal of the Astronomical Society of the Pacific .. Memorials of WILLIAM CRANCH BOND , and of His Son , GEORGE PHILLIPS BOND , by EDWARD S. HOLDEN . E. S. H. ...
Page 92
... objective were set up too tightly , producing a set of strains in the glass , or if the objective were strained by its cell . Strains of this sort will produce faint companions to stars sufficiently bright . A com- parison of all the ...
... objective were set up too tightly , producing a set of strains in the glass , or if the objective were strained by its cell . Strains of this sort will produce faint companions to stars sufficiently bright . A com- parison of all the ...
Page 94
... objective , and in 1896 the complete telescope was mounted at Arequipa . * The maps accompanying the H. C. O. Circular are wonderfully fine , and show that the plan adopted for this powerful instrument has been completely successful ...
... objective , and in 1896 the complete telescope was mounted at Arequipa . * The maps accompanying the H. C. O. Circular are wonderfully fine , and show that the plan adopted for this powerful instrument has been completely successful ...
Page 98
... objective . The research was undertaken , as the title suggests , to determine the size of the lenses for the new Potsdam refractor , with the result that 80 cm . was adopted as the size of the objective . This lens is corrected for the ...
... objective . The research was undertaken , as the title suggests , to determine the size of the lenses for the new Potsdam refractor , with the result that 80 cm . was adopted as the size of the objective . This lens is corrected for the ...
Page 99
... objective varies , the visual objective of the thirty - six - inch telescope of the Lick Ob- servatory ( thickness about 74 cm . ) transmits about eighty - eight per cent . of the visual rays that fall upon it , if allowance is made for ...
... objective varies , the visual objective of the thirty - six - inch telescope of the Lick Ob- servatory ( thickness about 74 cm . ) transmits about eighty - eight per cent . of the visual rays that fall upon it , if allowance is made for ...
Other editions - View all
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