1428 Mombasa
| Discovery [1] | |
|---|---|
| Discovered by | C. Jackson |
| Discovery site | Johannesburg Obs. |
| Discovery date | 5 July 1937 |
| Designations | |
| MPC designation | 1428 Mombasa |
|
Named after
|
Mombasa (city, port)[2] |
| 1937 NO · 1933 WO 1949 FA · 1957 YZ |
|
| main-belt · (outer) [3] | |
| Orbital characteristics [1] | |
| Epoch 27 June 2015 (JD 2457200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 81.52 yr (29,775 days) |
| Aphelion | 3.2036 AU |
| Perihelion | 2.4233 AU |
| 2.8134 AU | |
| Eccentricity | 0.1386 |
| 4.72 yr (1,724 days) | |
| 138.57° | |
| Inclination | 17.312° |
| 115.80° | |
| 252.34° | |
| Physical characteristics | |
| Dimensions | 56.63 km[4] 55.34±0.70 km[5] 127.203±29.18 km[6] 62.45±0.73 km[7] 56.83 km (derived)[3] |
| 16.67 h[lower-alpha 1] 17.12±0.01 h[8] 17.6±0.2 h[9] |
|
| 0.0240[4] 0.025±0.001[5] 0.0010±0.0099[6] 0.038±0.004[7] 0.0415 (derived)[3] |
|
| SMASS = Xc C [3] |
|
| 10.3 | |
1428 Mombasa, provisional designation 1937 NO, is a large asteroid from the outer region of the asteroid belt, about 57 kilometers in diameter. It was discovered by English-born South African astronomer Cyril Jackson at Union Observatory, Johannesburg on 5 July 1937.[10]
The X-type asteroid orbits the Sun at a distance of 2.4–3.2 AU once every 4 years and 9 months (1,724 days). Its orbit shows an eccentricity of 0.14 and is tilted by 17 degrees to the plane of the ecliptic. It has a rotation period of about 17 hours[lower-alpha 1] and a very low albedo of between 0.01 and 0.04, according to the surveys carried out by IRAS, Akari, WISE and NEOWISE.[4][5][6][7]
The minor planet was named after Mombasa, chief-port on the coast of Kenya and its second largest city.[2]
References
- ↑ 1.0 1.1 Stephens (2012) web: rotation period 16.67±0.01 hours with a brightness amplitude of 0.16 mag. Notes: "A half-period of 8.38 h cannot be formally excluded". Summary figures at Collaborative Asteroid Lightcurve Link (CALL) for (1428) Mombasa
- ↑ 1.0 1.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 3.0 3.1 3.2 3.3 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 4.0 4.1 4.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 5.0 5.1 5.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 6.0 6.1 6.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 7.0 7.1 7.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
External links
- Asteroid Lightcurve Database (LCDB), query form (info)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- 1428 Mombasa at the JPL Small-Body Database
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