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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Results 6-10 of 64
Page 12
... surface of 3 inches . The collimator used is a visually corrected lens of 2 inches aperture and 36 inches focus . The camera lens is a plano - convex of 4 - in . aperture and 7 - ft . focus for H. The slit is provided with a sliding ...
... surface of 3 inches . The collimator used is a visually corrected lens of 2 inches aperture and 36 inches focus . The camera lens is a plano - convex of 4 - in . aperture and 7 - ft . focus for H. The slit is provided with a sliding ...
Page 19
... surfaces . The object of the present note is to draw attention to , and to give a brief description of these markings . Each of the lenses in question consists of a combination of three elements , the front and back lenses being double ...
... surfaces . The object of the present note is to draw attention to , and to give a brief description of these markings . Each of the lenses in question consists of a combination of three elements , the front and back lenses being double ...
Page 21
... surfaces of the lenses , as white on a dark background . or Fig . 1 ( Plate 1 ) represents the 3 - in . objective which has been employed in an instrument for 83 months . The markings , it will be noticed , are small , and near the ...
... surfaces of the lenses , as white on a dark background . or Fig . 1 ( Plate 1 ) represents the 3 - in . objective which has been employed in an instrument for 83 months . The markings , it will be noticed , are small , and near the ...
Page 22
... surface of the combination on which the markings are to be found . As a matter of fact , although it is quite simple ... surface of the back lens , of light silicate crown glass , which was affected to the greatest extent , and on which ...
... surface of the combination on which the markings are to be found . As a matter of fact , although it is quite simple ... surface of the back lens , of light silicate crown glass , which was affected to the greatest extent , and on which ...
Page 23
... surface of the lens , and had the appearance of a deposit on the surface . Each fungus - like figure seemed to have originated from a small area , not a single point , and developed radially in numerous directions , throwing out ...
... surface of the lens , and had the appearance of a deposit on the surface . Each fungus - like figure seemed to have originated from a small area , not a single point , and developed radially in numerous directions , throwing out ...
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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