(181708) 1993 FW
 1993 FW as taken by astronomers David Jewitt and Jane Luu using the Danish 1.54-metre telescope at the European Southern Observatory (ESO) in La Silla, Chile. | |
| Discovery | |
|---|---|
| Discovered by | David C. Jewitt, Jane X. Luu |
| Discovery date | 28 March 1993 |
| Designations | |
| Trans-Neptunian object (cubewano)[1] | |
| Orbital characteristics[2] | |
| Epoch 13 January 2016 (JD 2457400.5)[2] | |
| Uncertainty parameter 3 | |
| Observation arc | 5456 days (14.94 yr) |
| Aphelion | 46.293 AU (6.9253 Tm) |
| Perihelion | 41.642 AU (6.2296 Tm) |
| 43.967 AU (6.5774 Tm) | |
| Eccentricity | 0.052899 |
| 291.54 yr (106487 d) | |
Average orbital speed | 4.489 km/s |
| 351.305° | |
| 0° 0m 12.171s / day | |
| Inclination | 7.7336° |
| 187.837° | |
| 40.180° | |
| Jupiter MOID | 36.2333 AU (5.42042 Tm) |
| Physical characteristics | |
| Dimensions | 175 km[3] 241 km[4] |
| 7.0 | |
(181708) 1993 FW is a cubewano and was the second trans-Neptunian object to be discovered after Pluto and Charon, the first having been 15760 Albion, provisionally known as 1992 QB1. It was discovered in 1993 by David C. Jewitt and Jane X. Luu at the Mauna Kea Observatory, Hawaii.[5] Following its discovery it was nicknamed "Karla" after a character by John le Carré by its discoverers[6] and was hailed as that of a new planet.[7] 1993 FW was also discovered half a year after Albion.[8]
See also
- 15760 Albion
- List of trans-Neptunian objects
- Kuiper belt
- (15788) 1993 SB, another Kuiper belt object discovered in 1993[9]
- (15789) 1993 SC, another KBO discovered in 1993
- (385185) 1993 RO, another KBO discovered in 1993
References
- ↑ Marc W. Buie. "Orbit Fit and Astrometric record for 181708". SwRI (Space Science Department). Retrieved 2018-02-18.
- 1 2 "JPL Small-Body Database Browser". Jet Propulsion Laboratory. Retrieved 7 April 2016.
- ↑ "List of Known Trans-Neptunian Objects". Wm. Robert Johnston. Archived from the original on 2015-01-09. Retrieved 2015-01-03.
- ↑ "How many dwarf planets are there in the outer solar system?". Mike Brown. Retrieved 2015-01-03.
- ↑ B.S. Marsden; Jewitt, D.; Marsden, B. G. (1993). "1993 FW". IAU Circ. (5730). Minor Planet Center: 1. Bibcode:1993IAUC.5730....1L.
- ↑ "Space body given name of Le Carre character: Astronomers discover planetesimal Karla". The Independent. April 20, 1993. Archived from the original on 2022-05-01.
- ↑ Coote, Roger (August 2008). The earth. London: Alligator Books. ISBN 9781842399491. OCLC 671197414.
- ↑ Eicher, David J. (2013-09-23). COMETS!: Visitors from Deep Space. Cambridge University Press. ISBN 978-1-107-51350-1.
- ↑ "MPEC 2010-B62 :Distant Minor Planets (2010 FEB. 13.0 TT)". Minor Planet Center. 2010-01-30. Retrieved 2010-02-20.