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Subject
- astrometric binary stars1
- astrometry1
- astrophysics1
- color1
- comets1
- distance1
- extrasolar planets1
- g band1
- ground based astronomy1
- metal abundance1
- milky way galaxy1
- near earth asteroids[remove]2
- optical observations1
- optical telescopes1
- parallaxes1
- proper motions1
- radial velocity1
- rotation1
- satellite borne instruments1
- spectroscopic binary stars1
