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Subject
- apparent magnitude3
- asteroids2
- astrometry12
- astronomical object identification7
- bl lacertae objects1
- cataclysmic variable stars2
- catalogs5
- ccd photometry3
- chemical abundances1
- dwarf stars4
- early-type stars1
- effective temperature2
- emission line stars1
- galaxies4
- galaxy classification systems2
- galaxy clusters3
- galaxy planes1
- globular star clusters10
- h alpha photometry1
- infrared astronomy1
