431 Nephele

Nephele (minor planet designation: 431 Nephele) is a large Themistian asteroid. It is spectral C-type and is probably composed of carbonaceous material.

431 Nephele
Discovery
Discovered byAuguste Charlois
Discovery date18 December 1897
Designations
MPC designation(431) Nephele
Named after
Nephele
1897 DN
Main belt (Themis)
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc113.52 yr (41462 d)
Aphelion3.67837 AU (550.276 Gm)
Perihelion2.61178 AU (390.717 Gm)
3.14507 AU (470.496 Gm)
Eccentricity0.16957
5.58 yr (2037.3 d)
230.611°
 10m 36.152s / day
Inclination1.82752°
117.229°
216.161°
Physical characteristics
Mean diameter
95.03±1.6 km
18.821 h (0.7842 d)
0.0636±0.002
C
8.72

    It was discovered by Auguste Charlois on 18 December 1897 in Nice.

    References


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