Publications of the Astronomical Society of the Pacific, Volumes 3-4Astronomical Society of the Pacific, 1891 |
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Page 24
... diameter , the filament itself being of rec- tangular cross - section 0.028 X 0.048 cm . , or 0.00133 sq . cm . area . The length of the filament was about 30 cms . , its surface 4.5 sq . and its weight 0.0405 gramme . cms . , The ...
... diameter , the filament itself being of rec- tangular cross - section 0.028 X 0.048 cm . , or 0.00133 sq . cm . area . The length of the filament was about 30 cms . , its surface 4.5 sq . and its weight 0.0405 gramme . cms . , The ...
Page 25
... diameter , and was coiled into a helix of 18 spires . Its weight was 863 milligrammes . The glass globe , connections and general arrangements were all similar to those preceding . The lamp and beaker were balanced by 131.3 grammes ...
... diameter , and was coiled into a helix of 18 spires . Its weight was 863 milligrammes . The glass globe , connections and general arrangements were all similar to those preceding . The lamp and beaker were balanced by 131.3 grammes ...
Page 54
... diameter of the crater ( D ) ; the height of the central peak ( h ) ; the inclination of the outer wall towards the interior ( a ) and towards the exterior ( B ) in degrees . These and other data are given for 92 ring - craters - all ...
... diameter of the crater ( D ) ; the height of the central peak ( h ) ; the inclination of the outer wall towards the interior ( a ) and towards the exterior ( B ) in degrees . These and other data are given for 92 ring - craters - all ...
Page 55
... diameter . The broader the crater the less the interior depth . These facts seem to the author to invalidate the volcanic theory of the formation of such ring - craters . Under such a theory the broadest craters should also be the ...
... diameter . The broader the crater the less the interior depth . These facts seem to the author to invalidate the volcanic theory of the formation of such ring - craters . Under such a theory the broadest craters should also be the ...
Page 83
... diameter of seventeen feet , in which was mounted the 8 - inch CLARK equatorial telescope . The time of the Observatory has been kept by means of a chrono- meter by BOND , and two fine HOWARD clocks . The gravity escape- ment clock and ...
... diameter of seventeen feet , in which was mounted the 8 - inch CLARK equatorial telescope . The time of the Observatory has been kept by means of a chrono- meter by BOND , and two fine HOWARD clocks . The gravity escape- ment clock and ...
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Common terms and phrases
angle aperture appears Astronomical Astronomical Society atmosphere August axis bright BURCKHALTER California Street Catalogue Chicago Section chronometer Comet Committee copies corona coronal pole crater dark diameter Directors disc distance drawings E. E. BARNARD eclipse elected elongated equator equatorial exposure eye-piece HOLDEN inches instrument J. M. SCHAEBERLE July Jupiter Jupiter's KEELER latitude Library Lick Observatory light limb London longitude lunar magnitude means meeting meridian meridian circle meteors minutes Miss CLERKE MOLERA Moon Mount Hamilton nebula negatives object observations obtained Pacific parallax Paris photographic PIERSON planet plates polar position present Prof Professor WEINEK proper motions Publications radiant rays reference book right ascension ring San Francisco satellite SCHMIDT Secretary seen shadow solar spectra spectrum spot stars stellar sun-spots sun's telescope temperature tion TRANSIT OF MERCURY U. S. Naval Observatory University visible W. H. S. MONCK W. W. CAMPBELL Washington Zodiacal light