Subject
- vla2
- vlbi2
- agn1
- apparent magnitude1
- astronomical reference materials1
- cataclysmic variable stars1
- ccd photometry1
- earth (planet)1
- galaxy classification systems1
- galaxy planes1
- h i line emission1
- h ii regions1
- infrared photometry1
- magnetic fields1
- milky way galaxy1
- millimeter astronomy1
- novae1
- photometry1
- photovisual magnitude1
- pre-main sequence stars1
