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Discovery and designation
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| Discovered by | Carlos Torres | |||||||||
| Discovery date | June 26, 1979 | |||||||||
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Designations
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| MPC designation | (9917) Keynes | |||||||||
| Named after | John Maynard Keynes | |||||||||
| Alternate name(s) | 1979 MK; 1997 QW | |||||||||
| Epoch October 27, 2007 | ||||||||||
| Ap | 2.6858987 AU | |||||||||
| Peri | 2.0563253 AU | |||||||||
| Semi-major axis | 2.371112 AU | |||||||||
| Eccentricity | 0.1327591 | |||||||||
| Orbital period | 1333.6028693 d | |||||||||
| Mean anomaly | 235.42453° | |||||||||
| Inclination | 6.36364° | |||||||||
| Longitude of ascending node | 163.80288° | |||||||||
| Argument of peri | 170.76494° | |||||||||
| Surface temp. Kelvin Celsius |
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| Absolute magnitude (H) | 13.2 | |||||||||
9917 Keynes is a main belt asteroid. It orbits the Sun once every 3.65 years.[1]
Discovered on June 26, 1979 by Carlos Torres at the Cerro El Roble Astronomical Station, it was given the provisional designation "1979 MK"[2] and later named Keynes after British economist John Maynard Keynes (1883–1946)[1]. This choice of name may have been inspired by the provisional designation (MK).
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