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Subject
- galaxies[remove]32
- photometry27
- infrared photometry10
- redshifted9
- ultraviolet photometry6
- galaxy classification systems5
- optical astronomy5
- catalogs4
- wide-band photometry4
- spectroscopy3
- ccd photometry2
- chemical abundances2
- galaxy clusters2
- globular star clusters2
- ultraviolet astronomy2
- extinction1
- hst photometry1
- metallicity1
- open star clusters1
- radio astronomy1
