Popular Astronomy, Volume 58Goodsell Observatory of Carleton College, 1950 |
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Page 487
... Hertzsprung's conclusion that the F and G stars are on the average the faintest , not the K and M. He refutes a previous conclusion by Monck that the luminous redder stars have " greater radiating power " as contrary to physical laws ...
... Hertzsprung's conclusion that the F and G stars are on the average the faintest , not the K and M. He refutes a previous conclusion by Monck that the luminous redder stars have " greater radiating power " as contrary to physical laws ...
Page 488
... Hertzsprung's second paper , which appeared the following year , stressed even more than his first paper had done the importance of selection of material . He remarked that if the absolute magnitudes of stars of one type , say K , have ...
... Hertzsprung's second paper , which appeared the following year , stressed even more than his first paper had done the importance of selection of material . He remarked that if the absolute magnitudes of stars of one type , say K , have ...
Page 491
... ( Hertzsprung's ' giant ' and ' dwarf ' stars ) " ; while Hertz- sprung said , " I imagine for the future a spectral classification in two coordinates , the one giving the normal color index and the other the normal absolute brightness ...
... ( Hertzsprung's ' giant ' and ' dwarf ' stars ) " ; while Hertz- sprung said , " I imagine for the future a spectral classification in two coordinates , the one giving the normal color index and the other the normal absolute brightness ...
Contents
FR SECCHI AND STELLAR SPECTRA MARTIN F MCCARTHY S J | 153 |
STRUCTURE AND COMPOSITION OF CANYON DIABLO | 169 |
RADIO WHISTLES SIDNEY VAN DEN BERGH | 177 |
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AAVSO absolute magnitudes absorption Adams American angle appeared Arizona Astronomical Society atmosphere August Barringer Meteorite Crater bright California Canyon Diablo circle classification College comet coördinates curve density Department of Astronomy determined diameter Diedrich Director dome earth eclipse equator Greenwich Harvard Harvard College Observatory Hertzsprung Holden instrument interest iron July June Jupiter latitude Lick Observatory lines luminosity mass maximum meeting meteor Meteoritic Falls Meteoritical Society Mexico minor planets moon motion Mount Wilson mountain Museum node Notes Nova observed OCCULTATIONS VISIBLE paper parallaxes photographic plates present President Professor radial velocity radiation recent refractor Rosebrugh Russell Saturn Schmidt schreibersite Secchi servatory shows solar specimens spectra spectral class spectroscopic spectrum SS Cygni stellar Sunspot surface Taur tektites telescope temperature theory tion University Variable Star velocity VISIBLE IN LONGITUDE Yerkes Yerkes Observatory