Popular Astronomy, Volume 57Goodsell Observatory of Carleton College, 1949 |
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Page 118
... distances from their primaries which depend not only upon the mass of , and distance from , the primary , but also as the inverse second power of that distance . The following table gives the results of a comparison of the distances of ...
... distances from their primaries which depend not only upon the mass of , and distance from , the primary , but also as the inverse second power of that distance . The following table gives the results of a comparison of the distances of ...
Page 220
... distance . Nearby clusters naturally appear on the photographic plates to be more open . As a convenience in de- scribing this combined effect of distance and structure , I have set up twelve classes . Class I is the most concentrated ...
... distance . Nearby clusters naturally appear on the photographic plates to be more open . As a convenience in de- scribing this combined effect of distance and structure , I have set up twelve classes . Class I is the most concentrated ...
Page 475
... distance . ) Although refinements are necessary , this simple deduction from an unproven assumption is one of the basic methods for measuring astronomical distances . We must investigate further these distances and their measurement ...
... distance . ) Although refinements are necessary , this simple deduction from an unproven assumption is one of the basic methods for measuring astronomical distances . We must investigate further these distances and their measurement ...
Contents
INDEX TO ILLUSTRATIONS | 48 |
Astrolabes Photographs of 159 160 | 159 |
e Orbit of 464 | 178 |
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American angle appear asteroid astrolabe Astronomical Society atmosphere atomic average bright brighter California Cepheids cloud color comets crater curves determined diameter distance earth eclipse enstatite Ephemeris fireball galactic galaxy globular clusters Harvard Harvard College Observatory heliometer indicated instrument interest July June Jupiter latitude Lick Observatory light lunar magnitude Mars mass maximum mean measured meridian Messier meteor meteorites Meteoritical Society method miles Milky mirror month moon motion nebulae Notes novae object observations Observatory OCCULTATIONS VISIBLE October Open cluster optical orbit origin Palomar Palomar Observatories paper parallax particles period photographic planetary planetary nebulae planets plates POPULAR ASTRONOMY present probably published radiation radio relative rocket rotation Russell Santa Rosa Saturn scientific solar system space spectra spectrum stellar Struve Sunspot Table telescope temperature theory tion University Uranus Variable Star velocity Venus Yerkes Observatory