Collections
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M stars, fails W1-W4 test by Shigeru (10 subjects)
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NC by Pini2013 (10 subjects)
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S1 Stars with unknown spectral class by artman40 (10 subjects)
Disk Detective Talk
M stars, fails W1-W4 test by Shigeru (10 subjects)
NC by Pini2013 (10 subjects)
S1 Stars with unknown spectral class by artman40 (10 subjects)