𝔖 Bobbio Scriptorium
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On the variability of the “blue objects”

✍ Scribed by Lore Richter; N. B. Richter; W. Wenzel

Publisher
John Wiley and Sons
Year
1971
Tongue
English
Weight
353 KB
Volume
293
Category
Article
ISSN
0004-6337

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## Abstract 36 objects with mainly negative (__U—B__) indices were investigated for variability and proper motions. 10 objects with significant or suspected proper motions and 8 variable objects were detected. Using these criteria, it was possible to separate white dwarfs from quasi‐stellar objects