The Astrometry Perihelion API returns the past and next perihelions for all the space objects monitored by Astrometry.ch. 18 possibilities include all, Moon, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto, Halley, Tesla, Ceres, Haumea, Makemake, Eris, Earth, Encke, and Faye.
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