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Subject
- photometry[remove]64
- galaxies27
- globular star clusters16
- infrared photometry16
- ultraviolet photometry14
- optical astronomy12
- redshifted10
- magellanic clouds8
- variable stars8
- wide-band photometry7
- galaxy classification systems6
- hertzsprung russell diagram4
- open star clusters4
- catalogs3
- galaxy clusters3
- stellar associations3
- ccd photometry2
- quasars2
- two-color diagrams2
- chemical abundances1
