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Old Galactic open clusters
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Cosmology News
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777
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Title: The old Galactic open clusters FSR1716 and Czernik23 Authors: Charles Bonatto, Eduardo Bica Open clusters older than ~ 4 Gyr are rare in the Galaxy. Affected by a series of mass-decreasing processes, the stellar content of most open clusters dissolves into the field in a time-scale shorter...
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Open Clusters
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Stars/galaxy News
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2
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827
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Title: The orbits of open clusters in the Galaxy Authors: Zhen-Yu Wu, Xu Zhou, Jun Ma, Cui-Hua Du We present and analyse kinematics and orbits for a sample of 488 open clusters in the Galaxy. The velocity ellipsoid for our present sample is derived as (\sigma_{U}, \sigma_{V}, \sigma_{W})=(28.7, 15...
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Open star clusters
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Stars/galaxy News
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0
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263
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Title: A catalogue of 120 NGC open star clusters Authors: A. L. Tadross A sample of 145 JHK--2MASS observations of NGC open star clusters is studied, of which 132 have never been studied before. Twelve are classified as non-open clusters and 13 are re-estimated self-consistently, after applying t...
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Open Clusters ASCC21
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Stars/galaxy News
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0
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520
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Title: Open Clusters ASCC21 as a Probable Birthplace of the Neutron Star Geminga Authors: V.V. Bobylev, A.T. Bajkova (Version v2) We analyse the encounters of the neutron star (pulsar) Geminga with open star clusters in the OB association OriOB1a through the integration of epicyclic orbits into...
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