Photographic magnitudes of stars brighter than 7m.75 between +75o and +80o declination

Photographic magnitudes of stars brighter than 7m.75 between +75o and +80o declination

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... telescope A or telescope B. A comparison of my -+- 88Ad zone with De S1ttera#39;s list of magnitudes LPg (XI) furnished the ... of two diagrams A and B, which permitted to read off or to estimate the nearest hundredth of a magnitude as a functionanbsp;...


Title:Photographic magnitudes of stars brighter than 7m.75 between +75o and +80o declination
Author: Jules Jacques Marie Adriaan de Kort
Publisher: - 1949
ISBN-13:

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