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Subject
- ccd photometry[remove]202
- infrared photometry[remove]202
- photometry202
- optical astronomy187
- wide-band photometry163
- open star clusters90
- eclipsing binary stars31
- variable stars19
- globular star clusters12
- kron-cousins photometry12
- pre-main sequence stars12
- galaxies11
- bl lacertae objects6
- h alpha photometry6
- multiple stars5
- quasars5
- proper motions4
- infrared astronomy3
- late-type stars3
- magellanic clouds3