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Subject
- open star clusters[remove]324
- optical astronomy324
- photometry324
- wide-band photometry[remove]324
- infrared photometry254
- ccd photometry91
- pre-main sequence stars30
- radial velocity29
- proper motions27
- h alpha photometry21
- variable stars21
- x-ray sources19
- astronomical object identification14
- chemical abundances12
- effective temperature12
- kron-cousins photometry12
- line intensities12
- magellanic clouds11
- stellar spectral types9
- eclipsing binary stars8