Download PDF, EPUB, Kindle Publications of the Lick Observatory Volume 6

Publications of the Lick Observatory Volume 6 by Lick Observatory

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Author: Lick Observatory
Page Count: 32 pages
Published Date: 01 Mar 2012
Publisher: Rarebooksclub.com
Publication Country: Miami Fl, United States
Language: English
ISBN: 9781130289077
Download Link: Publications of the Lick Observatory Volume 6
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1903 Excerpt: ...the Declinations of 303. This systematic difference in Declination would amount to o."62 at the lower limit of B.J. Since this list has greater extension than 303, all of its stars have been included. In making the final reduction, the systematic difference has been derived from the observations of Latitude made here, using the Declinations of B.J. for all the stars contained in that list, and the Declinations of 303 for stars which are not in B. J. The results of this comparison are given in Table VI of this introduction. The two lists of Fundamental stars are kept separate, and the detailed comparisons of Ephemeris with observation, are given in Tables III and IV. For the mean of the zone of Fundamental stars, the correction +o."40 has been applied to the Declinations of B. J. throughout, and the system employed is assumed to be that of AuwERS' corrected 303. This differs from the original list of 303 by--o."38 in Declination, for the stars employed. The systematic difference of the original list, from B. J., is given in the Jahrbuch as: +o."50--o."02 S. The observations of the Fundamental stars must necessarily reproduce the adopted places of these stars, for the mean of all the determinations. The mean by stars, giving the same weight to each star, may differ slightly from the mean weighted according to the number of observations. The variation of the observed places, through the zone of Fundamental stars, is indicated in Table V, following the detailed results. For the extension of this series of determinations, beyond the zone of Fundamental stars, comparison with existing places of Standard stars will furnish a series of tests. In the following portions of this introduction will be found the results of comparisons, made with ...

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