1428 Mombasa
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1428 Mombasa, provisional designation 1937 NO, is a dark asteroid from the middle region of the asteroid belt, approximately 56 kilometers in diameter.
Quick Facts Discovery, Discovered by ...
Discovery[1] | |
---|---|
Discovered by | C. Jackson |
Discovery site | Johannesburg Obs. |
Discovery date | 5 July 1937 |
Designations | |
(1428) Mombasa | |
Named after | Mombasa (city, port)[2] |
1937 NO · 1933 WO 1949 FA · 1957 YZ | |
main-belt · (middle) | |
Orbital characteristics[1] | |
Epoch 16 February 2017 (JD 2457800.5) | |
Uncertainty parameter 0 | |
Observation arc | 82.74 yr (30,219 days) |
Aphelion | 3.2039 AU |
Perihelion | 2.4154 AU |
2.8096 AU | |
Eccentricity | 0.1403 |
4.71 yr (1,720 days) | |
263.81° | |
0° 12m 33.48s / day | |
Inclination | 17.305° |
115.72° | |
252.61° | |
Physical characteristics | |
Dimensions | 52.464±0.268 km[3] 53.35±13.28 km[4] 55.34±0.70 km[5] 56.63±2.0 km[6] 56.83 km (derived)[7] 57.59±19.41 km[8] 62.45±0.73 km[9] 127.203±29.18 km[10] |
16.67±0.01 h[lower-alpha 1] 17.12±0.01 h[11] 17.6±0.2 h[12] | |
0.0010±0.0099[10] 0.0240±0.002[6] 0.025±0.001[5] 0.038±0.004[9] 0.04±0.04[8] 0.0415 (derived)[7] 0.06±0.06[4] | |
SMASS = Xc[1] · P[10] · C[7] | |
9.95±0.74[13] · 10.20[8][9] · 10.27[4] · 10.3[1][7] · 10.9[5][6][10] | |
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It was discovered on 5 July 1937, by English-born South African astronomer Cyril Jackson at Johannesburg Observatory, South Africa, and later named after Mombasa, Kenya.[2][14]