Popular Astronomy, Volume 50Goodsell Observatory of Carleton College, 1942 |
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Page 74
... length is affected by the irregularities of motion of the equinox of short and long periods and also by the small progressive change in the rate of that motion . In order to avoid these variations and to pro- vide a day of less variable ...
... length is affected by the irregularities of motion of the equinox of short and long periods and also by the small progressive change in the rate of that motion . In order to avoid these variations and to pro- vide a day of less variable ...
Page 213
... Length of path Radiant ( uncorrected ) Projected length of path 1929 July 10/11 , 9:50 P.M. , E.S.T. 247 ° λ = 84 ° 33 ' , : λ = 84 ° 27 ' 171 km 166 km - 40 ° 30 ' at 59 km = 42 ° 00 ′ at 15 km a = 3 ° ; h = 20 ° ; a = 243 ° ; 8 = -28 ...
... Length of path Radiant ( uncorrected ) Projected length of path 1929 July 10/11 , 9:50 P.M. , E.S.T. 247 ° λ = 84 ° 33 ' , : λ = 84 ° 27 ' 171 km 166 km - 40 ° 30 ' at 59 km = 42 ° 00 ′ at 15 km a = 3 ° ; h = 20 ° ; a = 243 ° ; 8 = -28 ...
Page 450
... length is about 70 miles . The duration of flight was very close to 7 seconds . Near its end the zenithal magnitude seems to have been about -11 . The meteor was remarkable for a lack of disintegration ; it simply " went out " at its ...
... length is about 70 miles . The duration of flight was very close to 7 seconds . Near its end the zenithal magnitude seems to have been about -11 . The meteor was remarkable for a lack of disintegration ; it simply " went out " at its ...
Contents
Bolide observed A bright 451 | 114 |
STELLAR DISTANCES FREDERICK SLOCUM | 117 |
METEORITIC FOSSILS BEN HUR WILSON | 125 |
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absolute magnitude American American Astronomical Society American Meteor Society angle appeared Astronomical Society atmosphere average azimuth changes College comets constellation craters Cygni diameter direction distance earth eclipse end point ephemeris errors fireball galactic galaxies given height horizon indicated instruments July June Jupiter latitude Lick Observatory light curve longitude luminosity lunar Mare Imbrium Mars maxima maximum mean measured meridian meteor meteorite method miles minimum moon motion nebulae Notes novae object observations Observatory obtained OCCULTATIONS Ohio orbit paper parallax path perihelion phenomena photographs planet POPULAR ASTRONOMY position predicted present probably problem projectile radiation region reports rotation seen solar spectra spectral type spectrum SS Cygni stellar sunspot surface Table telescope tion train University Variable Star variation velocity Venus visible Yerkes Observatory zenith Zodiacal Light