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Subject
- accretion3
- active galactic nuclei2
- apparent magnitude2
- astrometry2
- astronomical models11
- astronomical object identification14
- astrophysical masers13
- atomic physics8
- be stars1
- bok globules3
- brown dwarfs1
- catalogs1
- ccd photometry2
- chemical abundances18
- classification1
- co line emission61
- ddo photometry1
- diffuse molecular clouds4
- dwarf stars1
- early-type stars1
