Collections
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galaxy by SUMO_2011 (10 subjects)
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AGNs/QSOs by michiharu (10 subjects)
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Possible quasar / AGN (no SIMBAD) by Shigeru (10 subjects)
Disk Detective Talk
galaxy by SUMO_2011 (10 subjects)
AGNs/QSOs by michiharu (10 subjects)
Possible quasar / AGN (no SIMBAD) by Shigeru (10 subjects)