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Discovery
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|---|---|
| Discovered by | Marc W. Buie |
| Discovery site | Anderson Mesa |
| Discovery date | March 7, 1997 |
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Designations
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| MPC designation | 129564 Christy |
| Named after | James W. Christy |
| Alternate name(s) | 1997 ER40 |
| Minor planet category |
main-belt minor planet |
| Aphelion | 2.8897997 AU (432,307,881.870 km) |
| Perihelion | 2.4610327 AU (368,165,251.643 km) |
| Semi-major axis | 2.6754162 AU (400,236,566.756 km) |
| Eccentricity | 0.0801309 |
| Orbital period | 1598.3999661 days 4.38 years |
| Mean anomaly | 314.08915° |
| Inclination | 14.3445° |
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Physical characteristics
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| Absolute magnitude (H) | 15.7 |
129564 Christy (provisional designation: 1997 ER40) is a main-belt minor planet. It was discovered by Marc W. Buie at the Anderson Mesa Station in Coconino County, Arizona, on March 7, 1997. It is named after James W. Christy, an American astronomer most notable for his discovery of Pluto's satellite Charon.[1]
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