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Subject
- a stars3
- absolute magnitude6
- active galactic nuclei1
- ap stars1
- apparent magnitude17
- asteroseismology1
- astrometry13
- astronomical models11
- astronomical object identification9
- astronomical reference materials2
- astrophysical masers3
- b stars3
- barium stars1
- be stars5
- brown dwarfs4
- carbon stars4
- cataclysmic variable stars4
- catalogs4
- ccd photometry1
- chemical abundances76
