Popular Astronomy, Volume 51Goodsell Observatory of Carleton College, 1943 |
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Page 154
... plates induced the writer to take a series of exposures on February 3 and this brought out clearly how the tail material was thrown out in space with a velocity of 30 to 40 kilometers per second away from the head . These plates suggest ...
... plates induced the writer to take a series of exposures on February 3 and this brought out clearly how the tail material was thrown out in space with a velocity of 30 to 40 kilometers per second away from the head . These plates suggest ...
Page 182
... plates . At present the Eastman Super Panchro Press emulsion is used for general work , giving an average effective ... plates and about half as much for the G - type plates , corresponding to changes in the refraction constant of " .023 ...
... plates . At present the Eastman Super Panchro Press emulsion is used for general work , giving an average effective ... plates and about half as much for the G - type plates , corresponding to changes in the refraction constant of " .023 ...
Page 284
... plate taken on July 18 , 1941 , and confirmed on another spectrum plate of July 29. They showed broad emission bands for the hydrogen lines Beta to Zeta . Chart plates of the region indicate that the nova attained the magnitude 6.8 on ...
... plate taken on July 18 , 1941 , and confirmed on another spectrum plate of July 29. They showed broad emission bands for the hydrogen lines Beta to Zeta . Chart plates of the region indicate that the nova attained the magnitude 6.8 on ...
Contents
Frontispiece Plate 1 The Moon | 9 |
The Moon Wm W Payne | 16 |
Concerted Observation of the Aurora M A Veeder | 22 |
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altitude American angle appears asteroids Astronomical Society ataxite atmosphere August brighter brightness catalogs celestial colour comet Copernican Copernicus Cygni December determined diameter distance Earth eclipse Ephemeris equinox error estimates explosion eyepiece fall February feet fireball given Goodsell Observatory Greenwich Harlow Shapley Harvard Harvard College Observatory January Jupiter latitude light curve longitude lunar magnitude March Mare Imbrium Mars mass mathematics maximum meteorite method miles Moon Moon's motion navigation nebulae Notes Nova object observations obtained occultation orbit OTERMA parallax path period photographic planet plates Pleione POPULAR ASTRONOMY position present probably Professor proper motions reports rotation Saturn SCRIPTA MATHEMATICA seen siderites solar spectral spectral type spectroscopic sphere SS Cygni stellar surface telescope theory tion Tucson University Variable Star velocity Venus visible visual visual magnitude volume