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New variable star 2.1914 Cygni

✍ Scribed by H. C. Plummer

Publisher: John Wiley and Sons
Year: 1914
Tongue: English
Weight: 104 KB
Volume: 197
Category: Article
ISSN: 0004-6337
DOI: 10.1002/asna.19141970710

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Most of the observations of this star are photographic. In order to reduce these uniformly, the magnitudes of six stars of intermediate brightness were carefully determined from seven plates by sequences 6f steps, and on the assumption that the photographic magnitude of BD. +z9?4z37 (9m3) is 9.2 ; a