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Subject
- absolute magnitude14
- active galactic nuclei44
- apparent magnitude33
- asteroids8
- astrometry12
- astronomical models15
- astronomical object identification7
- astronomical reference materials1
- astrophysical masers1
- bl lacertae objects1
- catalogs163
- ccd photometry6
- chemical abundances19
- co line emission1
- dwarf stars1
- eclipsing binary stars2
- effective temperature3
- emission line stars1
- exoplanets3
- extinction8
