Subject
- cosmology1
- effective temperature1
- emission line stars1
- extinction5
- extrasolar planets1
- galaxies305
- galaxy classification systems44
- galaxy clusters27
- galaxy kinematics21
- galaxy planes2
- gamma-ray astronomy97
- gamma-ray bursts1
- giant stars1
- globular star clusters1
- gravitational lensing4
- h alpha photometry6
- h beta photometry3
- h i line emission8
- h ii regions6
- high energy astrophysics1