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Subject
- absolute-magnitude5
- active galactic nuclei1
- adql1
- agn1
- astronomical-object-identification1
- broad-band-photometry3
- catalogs1
- correlation1
- digital images1
- discrete-radio-sources2
- galactic plane1
- galaxies10
- galaxy-ages4
- galaxy-formation5
- galaxy-luminosities2
- galaxy-masses5
- galaxy-photometry5
- galaxy-planes3
- h-alpha-photometry5
- h-beta-photometry5