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Subject
- surveys37
- stars21
- astrometry18
- spectroscopy17
- proper-motions16
- catalogs12
- observational-cosmology10
- milky-way-galaxy8
- strong-gravitational-lensing8
- quasars7
- astrophotography6
- history-of-astronomy6
- infrared-photometry5
- particle-astrophysics5
- time-domain-astronomy5
- active-galactic-nuclei4
- broad-band-photometry4
- cosmological-neutrinos4
- galaxy-structure4
- neutrino-astronomy4