The Thousand Star Magnitudes in the Catalogues of Ptolemy, Al Sufi, and Tycho are all Corrected for Atmospheric Extinction

Author: Schaefer Bradley E.  

Publisher: Science History Publications Ltd.

ISSN: 0021-8286

Source: Journal for the History of Astronomy, Vol.44, Iss.1, 2013-02, pp. : 47-91

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Abstract