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Subject
- solar system[remove]201
- asteroids88
- photometry54
- solar system planets45
- astrometry42
- optical astronomy26
- comets22
- infrared photometry22
- spectroscopy22
- the sun17
- ephemerides13
- surveys13
- infrared astronomy12
- ccd photometry11
- chemical abundances10
- apparent magnitude9
- astronomical models9
- wide-band photometry7
- galaxy classification systems5
- radio astronomy5
