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Subject
- accretion1
- active galactic nuclei2
- astrometry5
- astronomical models3
- astronomical object identification5
- astrophysical masers12
- bl lacertae objects1
- carbon stars1
- cataclysmic variable stars1
- ccd photometry1
- chemical abundances3
- co line emission5
- dwarf stars1
- early-type stars6
- eclipsing binary stars1
- effective temperature1
- emission line stars5
- extinction9
- galaxies2
- galaxy classification systems7
