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Hipparcos data for two open clusters containing cepheids

✍ Scribed by G. Lyngå; L. Lindegren

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
206 KB
Volume
3
Category
Article
ISSN
1384-1076

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✦ Synopsis

Using proper motion data from the Hipparcos satellite it is shown that the cepheids S Nor and U Sgr are members of the open clusters NGC 6087 and M 25, respectively. The precision of the Hipparcos data is needed to conclusively carry out a membership test. Parallax data, also obtained from Hipparcos, do not contradict the proper motion results.

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