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Subject
- galaxies15
- stars14
- galaxy-formation10
- galaxy-masses10
- galaxy-photometry10
- h-alpha-photometry10
- h-beta-photometry10
- infrared-photometry10
- interstellar-line-emission10
- theoretical-models10
- absolute-magnitude8
- galaxy-ages7
- spectroscopy7
- redshift-surveys5
- astronomy-web-services4
- catalogs4
- photographic-photometry4
- sky-surveys4
- virtual-observatories4
- data retrieval3