Subject
- supernova remnants4
- dwarf stars3
- exoplanets3
- extinction3
- galaxy classification systems3
- h i line emission3
- milky way galaxy3
- star forming regions3
- stellar ages3
- stellar associations3
- stellar mass loss3
- stellar spectral types3
- supernovae3
- wide-band photometry3
- ap stars2
- carbon stars2
- ephemerides2
- galactic center2
- galaxy clusters2
- galaxy rotation2
