Subject
- galaxy planes2
- interferometry2
- interstellar reddening2
- medium band photometry2
- milky way galaxy2
- molecular clouds2
- narrow band photometry2
- nebulae2
- photographic magnitude2
- south galactic pole2
- spectrophotometry2
- astronomical reference materials1
- bl lacertae objects1
- black holes1
- effective temperature1
- h ii regions1
- intergalactic medium1
- late-type stars1
- magellanic clouds1
- magnetic fields1
