(248835) 2006 SX368 (provisional designation 2006 SX368) is a centaur, approximately 75 kilometers (47 miles) in diameter, orbiting in the outer Solar System between Saturn and Neptune. It was discovered on 16 September 2006, by American astronomers Andrew Becker, Andrew Puckett, and Jeremy Kubica at Apache Point Observatory in Sunspot, New Mexico.[3]
| Discovery[1] | |
|---|---|
| Discovered by | A. C. Becker A. W. Puckett J. Kubica |
| Discovery site | Apache Point Obs. |
| Discovery date | 16 September 2006 |
| Designations | |
| (248835) 2006 SX368 | |
| 2006 SX368 | |
| centaur[1][2] · distant[3] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 3[1] · 1[3] | |
| Observation arc | 5.91 yr (2,160 days) |
| Aphelion | 32.049 AU |
| Perihelion | 11.945 AU |
| 21.997 AU | |
| Eccentricity | 0.4570 |
| 103.17 yr (37,683 d) | |
| 25.503° | |
| 0° 0m 34.56s / day | |
| Inclination | 36.325° |
| 280.00° | |
| 70.489° | |
| TJupiter | 3.183 |
| Physical characteristics | |
| 76 km[2][4] 78.44±22.63 km[5] | |
| 0.046±0.018[5] 0.052[2][4] | |
| BR[2] B–R = 1.27[2] | |
| 9.5[1] | |
Centaurs are dynamically unstable due to strong interactions with the giant planets. The orbit of 2006 SX368 is unusually eccentric — near its perihelion, it comes under the influence of Uranus, while at the aphelion it travels slightly beyond the orbit of Neptune.[4]
It orbits the Sun at a distance of 11.9–32.0 AU once every 103 years and 2 months (37,683 days; semi-major axis of 22.0 AU). Its orbit has an eccentricity of 0.46 and an inclination of 36° with respect to the ecliptic.[1] The body’s observation arc begins with its official discovery observation at Apache Point in September 2006.[3]
In 2010, thermal flux from 2006 SX368 in the far-infrared was measured by the Herschel Space Telescope. As a result, its equivalent size was estimated to lie within a range from 70 kilometres (43 mi) to 80 kilometres (50 mi).[4]
- ^ a b c d e f “JPL Small-Body Database Browser: 248835 (2006 SX368)” (2012-08-15 last obs.). Jet Propulsion Laboratory. Retrieved 16 January 2018.
- ^ a b c d e Johnston, Wm. Robert (15 October 2017). “List of Known Trans-Neptunian Objects”. Johnston’s Archive. Retrieved 16 January 2018.
- ^ a b c d “248835 (2006 SX368)”. Minor Planet Center. Retrieved 16 January 2018.
- ^ a b c d Müller, T. G.; Lellouch, E.; Stansberry, J.; Kiss, C.; Santos-Sanz, P.; Vilenius, E.; et al. (July 2010). “TNOs are Cool: A survey of the trans-Neptunian region. I. Results from the Herschel science demonstration phase (SDP)”. Astronomy and Astrophysics. 518: 5. arXiv:1005.2923. Bibcode:2010A&A…518L.146M. doi:10.1051/0004-6361/201014683. S2CID 118635387.
- ^ a b Bauer, James M.; Grav, Tommy; Blauvelt, Erin; Mainzer, A. K.; Masiero, Joseph R.; Stevenson, Rachel; et al. (August 2013). “Centaurs and Scattered Disk Objects in the Thermal Infrared: Analysis of WISE/NEOWISE Observations”. The Astrophysical Journal. 773 (1): 11. arXiv:1306.1862. Bibcode:2013ApJ…773…22B. doi:10.1088/0004-637X/773/1/22. S2CID 51139703.
- Distant Minor Planets 248835 & 2009 MS9 (Remanzacco Observatory – August 15, 2012)
- List Of Centaurs and Scattered-Disk Objects, Minor Planet Center
- (248835) 2006 SX368 at the JPL Small-Body Database