Popular Astronomy, Volume 50Goodsell Observatory of Carleton College, 1942 |
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Page 365
... craters . During the centuries since the invention of the telescope , astronomers have been divided into two opposing groups , one favoring the meteoritic impact theory and the other group being equally definite in stating that the ...
... craters . During the centuries since the invention of the telescope , astronomers have been divided into two opposing groups , one favoring the meteoritic impact theory and the other group being equally definite in stating that the ...
Page 366
... craters . Their major axes are all nearly , but not quite , parallel . Craters of this type are found no where else on the moon . Thus their nature , location , and orientation mark them as a unique type and are overpowering evidence of ...
... craters . Their major axes are all nearly , but not quite , parallel . Craters of this type are found no where else on the moon . Thus their nature , location , and orientation mark them as a unique type and are overpowering evidence of ...
Page 369
... crater pit . In the case of the largest of all craters , Mare Imbrium , the lava burst out of the restraining walls and spread over a very large area of the moon's surface . Three of the large crater - seas have been identified . They ...
... crater pit . In the case of the largest of all craters , Mare Imbrium , the lava burst out of the restraining walls and spread over a very large area of the moon's surface . Three of the large crater - seas have been identified . They ...
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