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Discovery | |
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Discovered by | Jean-Jacques Blanpain (Marseille, France) |
Discovery date | 1819 November 28/November 2003 |
Designations | |
D/1819 W1; 2003 WY25 | |
Orbital characteristics | |
Epoch | 1819 November 22 |
Aphelion | 5.094 AU |
Perihelion | 0.891 AU |
Semi-major axis | 2.993 AU |
Eccentricity | 0.702 |
Orbital period | 5.18 yr |
Inclination | 9.23° |
Last perihelion | 2019-Dec-20[1] 2014-08-28 2009-04-30 |
Next perihelion | 2025-04-14[1] |
Earth MOID | 0.015 AU (2,200,000 km) |
289P/Blanpain, formerly D/1819 W1 (Blanpain) is a short-period comet with an orbital period of 5.2 years. It was discovered by Jean-Jacques Blanpain on November 28, 1819 but was considered lost until it was recovered in 2013. It was last observed in 2020.