Collections
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Possible YSOs by michiharu (10 subjects)
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STAR by SUMO_2011 (10 subjects)
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YSO by Shigeru (10 subjects)
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YSOs by Pini2013 (10 subjects)
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Vetted YSOs by TED91 (10 subjects)
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pppd by Patrick32 (10 subjects)
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Stars in SDSS by Shigeru (10 subjects)
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S2 Stars with unknown spectral class. by artman40 (10 subjects)
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Young Stellar Objects by marca (10 subjects)