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Subject
- be stars[remove]152
- photometry56
- spectroscopy43
- optical astronomy41
- wide-band photometry21
- emission line stars20
- infrared photometry20
- line intensities20
- radial velocity18
- variable stars15
- open star clusters14
- magellanic clouds13
- early-type stars12
- spectroscopic binary stars12
- stellar spectral types12
- effective temperature10
- interferometry9
- medium band photometry9
- polarimetry9
- pre-main sequence stars8