9917 Keynes

9917 Keynes

Orbit of (9917) Keynes (blue), planets (red) and the Sun (black). The outermost planet visible is Jupiter.
Discovery
Discovered by Carlos Torres
Discovery date 26 June 1999
Designations
MPC designation (9917) Keynes
Named after
 John Maynard Keynes
1979 MK; 1997 QW
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 13198 days (36.13 yr)
Aphelion 2.6872803 AU (402.01141 Gm)
Perihelion 2.0556639 AU (307.52294 Gm)
2.3714721 AU (354.76718 Gm)
Eccentricity 0.1331697
3.65 yr (1333.9 d)
324.48296°
0° 16m 11.582s / day
Inclination 6.372085°
163.67168°
171.17362°
Earth MOID 1.04418 AU (156.207 Gm)
Jupiter MOID 2.65834 AU (397.682 Gm)
Jupiter Tisserand parameter 3.524
Physical characteristics
Surface temp. min mean max
Kelvin
Celsius
13.7

    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).

    References

    1. 1 2 3 "9917 (1979 MK)". JPL Small-Body Database Browser. NASA/JPL. Retrieved 13 April 2016.
    2. ↑ (9917) 1979 MK Minor Planet Center's Minor Planet Ephemeris Service

    External links


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