Popular Astronomy, Volume 53Goodsell Observatory of Carleton College, 1945 |
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Page 344
... region free from obscura- tion , whereas the second falls in a region of obvious obscuration . Very near the second center are three stars of which color excesses have been measured by Stebbins , Huffer , and Whitford . All three stars ...
... region free from obscura- tion , whereas the second falls in a region of obvious obscuration . Very near the second center are three stars of which color excesses have been measured by Stebbins , Huffer , and Whitford . All three stars ...
Page 385
... region , while classical Cepheids are rare there . Related to this is the scarcity , in our galaxy , of Cepheids ... regions . Mere inspection of a plot of known variables shows how numerous they are in certain rectangular areas where ...
... region , while classical Cepheids are rare there . Related to this is the scarcity , in our galaxy , of Cepheids ... regions . Mere inspection of a plot of known variables shows how numerous they are in certain rectangular areas where ...
Page 520
... regions of the moon show many more craters than the equatorial region which is mainly occupied by the relatively smooth " maria " ( seas ) . This fact may be explained by a similar reasoning . The polar regions would probably have ...
... regions of the moon show many more craters than the equatorial region which is mainly occupied by the relatively smooth " maria " ( seas ) . This fact may be explained by a similar reasoning . The polar regions would probably have ...
Contents
THE VARIATION IN THE CALENDAR TIME OF THE EQUINOX | 103 |
PERSONAL EQUATION IN ASTRONOMY RAYNOR L DUNCOMBE | 110 |
THE AMPLEMENT AND THE COAMPLEMENT OF AN ANGLE | 121 |
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absorption aerolite angle angular appear April Astronomical Society B.Taur bisection error bright calendar century Cepheids clock clouds color comet computed constellation coördinate corona craters cycle Cygni dark nebulae diameter distance earth Easter intervals eclipse emission epact Ephemeris equinox Figure fireball full moon galactic given golden number Greenwich Jupiter km/sec latitude light curves lines lunar magnitude March Mars maximum mean Mercury meridian meteor meteorite method micrometer miles minimum motion nebulae noted nova object observations Observatory OCCULTATIONS VISIBLE orbit parsecs path perihelion period personal equation personal error photographic planets position precessional action region reports right ascension rotation satellite Saturn solar spectra spectral type spectrum SS Cygni stellar sun-spot surface Table Tauri stars telescope temperature tion transit circle U.S. Naval Observatory University Uranus Variable Star variation velocity Venus VISIBLE IN LONGITUDE zenith