Popular Astronomy, Volume 59Goodsell Observatory of Carleton College, 1951 |
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Page 181
... parallax determination with a probable error of about " .010 on the average . Reduction to absolute parallax is obtained by applying a statistical correction based on the mean parallax of the reference stars , taking into account their ...
... parallax determination with a probable error of about " .010 on the average . Reduction to absolute parallax is obtained by applying a statistical correction based on the mean parallax of the reference stars , taking into account their ...
Page 182
... parallax determinations , since the principal purpose was the study of orbital motion , both in right ascension and ... parallax factors in right . ascension . As a result there was on the average more than the usual range of parallax ...
... parallax determinations , since the principal purpose was the study of orbital motion , both in right ascension and ... parallax factors in right . ascension . As a result there was on the average more than the usual range of parallax ...
Page 252
... parallax.9,10 In practice the situation is not favorable , since the secular change in the proper motion , and also in the parallax , are irrevocably tied up with apparent secular changes caused by the reference stars.11,12,13 Both the ...
... parallax.9,10 In practice the situation is not favorable , since the secular change in the proper motion , and also in the parallax , are irrevocably tied up with apparent secular changes caused by the reference stars.11,12,13 Both the ...
Contents
JOHN LESLIE COMRIE 18931950 CHARLES H SMILEY | 115 |
LONGFOCUS PHOTOGRAPHIC ASTROMETRY CONTINUED | 129 |
GALILEO THE ASTRONOMER GEORGIO ABETTI | 138 |
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AAVSO absolute magnitude acceleration altitude American angle appear asteroids Astr astrometric Astronomical Society August binaries bright California Carleton College central chondrite cohenite comet components computed crater curve CURVIN H diagonal distance earth effect Ephemeris error eyepiece figures film fireball fringe galaxy Gingrich given Goodsell Observatory Harvard instruments iron January Jour June Jupiter kamacite latitude light longitude lunar Mars mass maximum measured meteor meteorite Meteoritical Society Mexico Milky Moon Moon's Mount Wilson nebulae night node Notes Nova object observations Observatory obtained OCCULTATIONS VISIBLE octahedrite optical parallax path photographic planet plates plessite POPULAR ASTRONOMY position present prism Professor proper motion reference stars reports right ascension rotation saros Saturn schreibersite siderite slits solar eclipses specimen spectra spectrum stellar subclass Sunspot surface symbols Table taenite telescope tion troilite University Variable Star velocity Venus