1428 Mombasa
| 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 · (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[a] 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[a] 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
- ^ a b 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
- ^ a b "JPL Small-Body Database Browser: 1428 Mombasa (1937 NO)" (2015-05-27 last obs.). Jet Propulsion Laboratory. Retrieved November 2015.
{{cite web}}: Check date values in:|accessdate=(help) - ^ a b Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1428) Mombasa. Springer Berlin Heidelberg. p. 115. ISBN 978-3-540-29925-7. Retrieved November 2015.
{{cite book}}: Check date values in:|accessdate=(help) - ^ a b c d "LCDB Data for (1428) Mombasa". Asteroid Lightcurve Database (LCDB). Retrieved November 2015.
{{cite web}}: Check date values in:|accessdate=(help) - ^ a b c Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System. Bibcode:2004PDSS...12.....T. Retrieved November 2015.
{{cite journal}}: Check date values in:|access-date=(help) - ^ a b c Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey". Publications of the Astronomical Society of Japan. 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. Retrieved November 2015.
{{cite journal}}: Check date values in:|access-date=(help) - ^ a b c Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal. 741 (2): 25. arXiv:1109.6407. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved November 2015.
{{cite journal}}: Check date values in:|access-date=(help) - ^ a b c Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; et al. (November 2012). "Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids". The Astrophysical Journal Letters. 759 (1): 5. arXiv:1209.5794. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. Retrieved November 2015.
{{cite journal}}: Check date values in:|access-date=(help) - ^ Hawkins, Scot; Ditteon, Richard (March 2008). "Asteroid Lightcurve Analysis at the Oakley Observatory - May 2007". Bulletin of the Minor Planets. 35 (1). Section of the Association of Lunar and Planetary Observers: 1–4. Bibcode:2008MPBu...35....1H. ISSN 1052-8091. Retrieved November 2015.
{{cite journal}}: Check date values in:|access-date=(help) - ^ Behrend, Raoul. "Asteroids and comets rotation curves – (1428) Mombasa". Geneva Observatory. Retrieved November 2015.
{{cite web}}: Check date values in:|accessdate=(help) - ^ "1428 Mombasa (1937 NO)". Minor Planet Center. Retrieved November 2015.
{{cite web}}: Check date values in:|accessdate=(help)
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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