Collections
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SIMBAD Stars by Shigeru (10 subjects)
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Multiples I by Shigeru (10 subjects)
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SIMBAD by basst82 (10 subjects)
Disk Detective Talk
SIMBAD Stars by Shigeru (10 subjects)
Multiples I by Shigeru (10 subjects)
SIMBAD by basst82 (10 subjects)