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Subject
- t dwarfs[remove]8
- brown dwarfs7
- infrared astronomy5
- optical astronomy4
- spectroscopy4
- stellar spectral types4
- infrared photometry3
- photometry3
- proper motions3
- trigonometric parallax3
- absolute magnitude2
- apparent magnitude2
- effective temperature2
- multiple stars2
- astrometry1
- late-type stars1
- line intensities1
- radial velocity1
- stellar ages1
- surveys1
