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Subject
- ccd photometry7
- chemical abundances1
- classification1
- eclipsing binary stars1
- extinction4
- globular star clusters2
- h ii regions2
- infrared photometry1
- interstellar medium3
- metallicity1
- molecular clouds13
- nebulae2
- north galactic pole2
- open star clusters18
- optical astronomy4
- photometry49
- polarimetry1
- population ii stars1
- sloan photometry1
- spectral energy distribution1
