Popular Astronomy, Volume 51Goodsell Observatory of Carleton College, 1943 |
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Page 176
... orbit . Dynamical and orienta- tional elements . The apparent orbit of a double star is obtained from observations of the relative position of the components made at different epochs . The accuracy of an apparent orbit is conveniently ...
... orbit . Dynamical and orienta- tional elements . The apparent orbit of a double star is obtained from observations of the relative position of the components made at different epochs . The accuracy of an apparent orbit is conveniently ...
Page 177
... orbit ; the latter are referred to as the dynamical elements . The relation of the dynamical elements to the rectangular coordinates . X , Y in the unit orbit is given by the equations X = cos E - e Y = VIe sin E ( 9 ) Here E is the ...
... orbit ; the latter are referred to as the dynamical elements . The relation of the dynamical elements to the rectangular coordinates . X , Y in the unit orbit is given by the equations X = cos E - e Y = VIe sin E ( 9 ) Here E is the ...
Page 179
... orbit of the bright component ( 20 ) or of the center of light ( 21 ) with respect to the center of mass , by the same method as out- lined for the relative orbit of the two components . In the present stage of this problem it is ...
... orbit of the bright component ( 20 ) or of the center of light ( 21 ) with respect to the center of mass , by the same method as out- lined for the relative orbit of the two components . In the present stage of this problem it is ...
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