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Subject
- active galactic nuclei5
- apparent magnitude2
- astrometry1
- astronomical models5
- astronomical object identification2
- astrophysical masers4
- atomic physics2
- b stars1
- brown dwarfs2
- catalogs1
- chemical abundances7
- co line emission5
- dwarf stars1
- early-type stars1
- effective temperature4
- emission line stars1
- exoplanets1
- extinction6
- galactic center4
- galaxies17
