2003 QX113
2003 QX113, also written as 2003 QX113, is a detached object[2] that was discovered when it was near aphelion. With an absolute magnitude of 4.7,[3] it may be a dwarf planet.[6] This has an orbit in the Kuiper belt region, home to the dwarf Planet Pluto, however this body has an even more eccentric orbit than Pluto.
![]() Hubble Space Telescope image of 2003 QX113 taken in 2006 | |
Discovery[1] | |
---|---|
Discovery date | 2003 |
Designations | |
2003 QX113 | |
Detached object[2] | |
Orbital characteristics[3] | |
Epoch 13 January 2016 (JD 2457400.5) | |
Uncertainty parameter 5 | |
Observation arc | 1778 days (4.87 yr) |
Aphelion | 62.146 AU (9.2969 Tm) (Q) |
Perihelion | 36.750 AU (5.4977 Tm) (q) |
49.448 AU (7.3973 Tm) (a) | |
Eccentricity | 0.25680 (e) |
347.72 yr (127,004 d) | |
136.84° (M) | |
0° 0m 10.205s / day (n) | |
Inclination | 6.7751° (i) |
158.07° (Ω) | |
25.042° (ω) | |
Earth MOID | 35.7537 AU (5.34868 Tm) |
Jupiter MOID | 31.3004 AU (4.68247 Tm) |
Physical characteristics | |
Dimensions | 505 km (assumed)[4] |
0.09 (assumed) | |
22.6[5] | |
4.7[3] | |
As of February 2016 located 59.9 AU from the Sun,[7] it will have moved beyond 60 AU by 2017 and will reach its aphelion around 2058.[8] It last came to perihelion around 1883.[3] Its current distance makes it one of the twelve most distant known minor planets in the Solar System (see table below).[7]
Size estimate
When 2003 QX113 was first discovered, it was estimated to have an absolute magnitude (H) of 4.9,[1] giving it an assumed size of only 461 kilometres (286 mi) in diameter.[4] As of 2010, 2003 QX113 is estimated to have a brighter absolute magnitude (H) of 4.7.[3] Assuming it is a trans-Neptunian object with a generic albedo of 0.09, it is about 505 kilometres (314 mi) in diameter.[4]
It has been observed 23 times over six oppositions and has an orbit quality of 4.[3]
See also
- List of Solar System objects most distant from the Sun in 2015
- (148209) 2000 CR105
- Eris (dwarf planet)
References
- Marsden, Brian G. (22 April 2006). "MPEC 2006-H29 : 45 NEW MULTIPLE-OPPOSITION TNOs". IAU Minor Planet Center. Harvard-Smithsonian Center for Astrophysics. Retrieved 6 January 2010.
- Marc W. Buie. "Orbit Fit and Astrometric record for 03QX113" (last observation: 2008-05-05 using 23 of 23 observations over 4.87 years). SwRI (Space Science Department). Retrieved 23 March 2009.
- "JPL Small-Body Database Browser: (2003 QX113)" (last observation: 2008-05-05; arc: 4.87 years). Retrieved 30 March 2016.
- Wm. Robert Johnston (22 August 2008). "List of Known Trans-Neptunian Objects". Johnston's Archive. Archived from the original on 18 April 2009. Retrieved 23 March 2009.
- "AstDyS 2003QX113 Ephemerides". Department of Mathematics, University of Pisa, Italy. Archived from the original on 14 May 2009. Retrieved 23 March 2009.
- "How many dwarf planets are there in the outer solar system?". Gps.caltech.edu. 21 July 2015. Archived from the original on 18 October 2011. Retrieved 22 July 2015.
- "List of minor planets more than 57.0 AU from the Sun". AstDyS-2, Asteroids – Dynamic Site, Department of Mathematics, University of Pisa, Italy. Retrieved 13 December 2018.
- "Horizon Online Ephemeris System". California Institute of Technology, Jet Propulsion Laboratory. Retrieved 23 March 2009.
External links
- What is the most distant body in the Solar System? A historical view (Michael Richmond)
- 2003 QX113 at AstDyS-2, Asteroids—Dynamic Site
- 2003 QX113 at the JPL Small-Body Database