Subject
- galaxy classification systems3
- k stars3
- narrow band photometry3
- white dwarf stars3
- x-ray sources3
- absolute magnitude2
- astronomical reference materials2
- atomic physics2
- brown dwarfs2
- early-type stars2
- galactic center2
- galaxy planes2
- galaxy rotation2
- magnetic fields2
- morgan-keenan classification2
- north galactic pole2
- redshifted2
- standard stars2
- stellar evolutionary tracks2
- subdwarf stars2
