Publications of the Astronomical Society of the Pacific, Volumes 61-62

absorption activity appear Association Astronomical atmosphere August bands bright California changes cluster color Comet Committee complete continuous curve December detailed determined diameter discussion distance dẞd eclipse effect emission February field Figure flares four give given included indicated intensity interest January July June km/sec length Lick Observatory light lines magnetic magnitude March maximum mean measured meeting Michigan mirror Moon motion Mount Wilson nearly nebulae NOTES Nova object Observatory observed obtained occur October Pacific period photographic photographic magnitude plates position possible present probably prominence Publications radial velocities ratio recent recorded region relative reported scale seen September shown Society solar spectra spectrograms spectrum stars stellar strong suggested sunspot Table taken telescope tests tion University variable