2006 QH181

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2006 QH181
Discovery
Discovery dateAugust 21, 2006
Designations
MPC designation2006 QH181
TNO[1][2]
Scattered disc[3]
Orbital characteristics[4]
Epoch 13 January 2016 (JD 2457400.5)[4]
Uncertainty parameter 6
Observation arc2634 days (7.21 yr)
Aphelion96.680 AU (14.4631 Tm) (Q)
Perihelion37.789 AU (5.6532 Tm) (q)
67.235 AU (10.0582 Tm) (a)
Eccentricity0.43795 (e)
551.31 yr (201366 d)
102.28° (M)
0° 0m 6.436s /day (n)
Inclination19.144° (i)
73.840° (Ω)
211.02° (ω)
Earth MOID36.7863 AU (5.50315 Tm)
Jupiter MOID32.6588 AU (4.88569 Tm)
Physical characteristics
Dimensions460–1030 km[4][5]
607 km (assumed)[6]
23.6[7]
4.3[4]

2006 QH181, also written as 2006 QH181, is a trans-Neptunian object (TNO). It is very likely a dwarf planet,[8] and is part of the scattered disc.[2][3] Its orbit is currently too poorly determined (U=6)[4] to know whether it is in a resonance with Neptune.

Distance[edit]

It came to perihelion around 1858.[4] It is currently 83.8 AU from the Sun[7] and moving away from the Sun at 1.04 kilometers per second (2,300 miles per hour).[9] The only dwarf planets and likely dwarf planets currently farther from the Sun are Eris (96.1 AU),[10] 2014 UZ224 (90.9 AU), 2015 TH367 (~89 AU), 2007 OR10 (88.0 AU),[11] Sedna (85.1 AU),[12] 2013 FS28 (84.8 AU), and 2014 FC69 (84.7 AU). Because it is so far from the Sun, it only has an apparent magnitude of 23.6.[7]

Orbit[edit]

It has been observed 15 times over only three oppositions and thus currently has a somewhat poorly known orbit. JPL ranks orbital quality from 0 to 9 (0 being best), and 2006 QH181 is currently listed with an orbit quality of 6.[4][14]

See also[edit]

References[edit]

  1. ^ "MPEC 2008-O05 : Distant Minor Planets". Minor Planet Center & Tamkin Foundation Computer Network. 2008-07-17. Retrieved 2008-07-29.
  2. ^ a b "List Of Centaurs and Scattered-Disk Objects". MPC. Retrieved 2007-03-03.
  3. ^ a b Marc W. Buie (2008-03-05). "Orbit Fit and Astrometric record for 06QH181". SwRI (Space Science Department). Retrieved 2014-02-28.
  4. ^ a b c d e f g "JPL Small-Body Database Browser: (2006 QH181)" (last observation: 2013-11-06; arc: 7.21 years). Retrieved 30 March 2016.
  5. ^ "Absolute Magnitude (H)". NASA/JPL. Archived from the original on 1 September 2008. Retrieved 2008-07-29.
  6. ^ Wm. Robert Johnston. "List of Known Trans-Neptunian Objects". Johnston's Archive. Archived from the original on 18 February 2007. Retrieved 2007-03-03.
  7. ^ a b c "AstDyS 2006QH181 Ephemerides". Department of Mathematics, University of Pisa, Italy. Retrieved 2014-04-06.
  8. ^ Michael E. Brown. "How many dwarf planets are there in the outer solar system? (updates daily)". California Institute of Technology. Retrieved 18 September 2016.
  9. ^ "Horizon Online Ephemeris System". California Institute of Technology, Jet Propulsion Laboratory. Retrieved 2009-01-22.
  10. ^ "AstDyS (136199) Eris Ephemerides". Department of Mathematics, University of Pisa, Italy. Retrieved 2012-01-31.
  11. ^ "AstDyS 2007OR10 Ephemerides". Department of Mathematics, University of Pisa, Italy. Retrieved 2012-01-31.
  12. ^ "AstDyS (90377) Sedna Ephemerides". Department of Mathematics, University of Pisa, Italy. Retrieved 2012-01-31.
  13. ^ a b "AstDyS-2, Asteroids - Dynamic Site". Retrieved 2018-12-26. Objects with distance from Sun over 59 AU
  14. ^ "2006 QH181". Minor Planet Center, IAU. Retrieved 2014-02-05.

External links[edit]