Collections
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gwiazda zmienna by SUMO_2011 (10 subjects)
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STAR by SUMO_2011 (10 subjects)
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SIMBAD Stars by Shigeru (10 subjects)
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Variables by Shigeru (10 subjects)
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Multiples 11k+ by Shigeru (10 subjects)
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double arrangement by SUMO_2011 (8 subjects)