Astronomy:2006 QH181

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2006 QH181
2006qh181 hst.jpg
Hubble Space Telescope image of 2006 QH181 taken in 2010
Discovery
Discovered byCTIO
Discovery date21 August 2006
Designations
2006 QH181
Minor planet category
Orbital characteristics[4]
Epoch 13 January 2016 (JD 2457400.5)[4]
Uncertainty parameter 6
Observation arc2634 days (7.21 yr)
|{{{apsis}}}|helion}}96.680 astronomical unit|AU (14.4631 Tm) (Q)
|{{{apsis}}}|helion}}37.789 AU (5.6532 Tm) (q)
67.235 AU (10.0582 Tm) (a)
Eccentricity0.43795 (e)
Orbital period551.31 yr (201366 d)
Mean anomaly102.28° (M)
Mean motion0° 0m 6.436s / day (n)
Inclination19.144° (i)
Longitude of ascending node73.840° (Ω)
211.02° (ω)
Earth MOID36.7863 AU (5.50315 Tm)
Jupiter MOID32.6588 AU (4.88569 Tm)
Physical characteristics
Dimensions
Apparent magnitude23.6[7]
Absolute magnitude (H)4.3[4]


2006 QH181, also written as 2006 QH181, is a trans-Neptunian object (TNO) in 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

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).[8] The only large objects currently farther from the Sun are Eris (96.1 AU),[9] 2014 UZ224 (90.9 AU), 2015 TH367 (~89 AU), Gonggong (88.0 AU),[10] Sedna (85.1 AU),[11] 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

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][12]

2006 QH181-orbit.png

See also

  • List of Solar System objects most distant from the Sun

References

  1. ↑ "MPEC 2008-O05 : Distant Minor Planets". Minor Planet Center & Tamkin Foundation Computer Network. 2008-07-17. http://cfa-www.harvard.edu/iau/mpec/K08/K08O05.html. 
  2. ↑ 2.0 2.1 "List Of Centaurs and Scattered-Disk Objects". MPC. http://www.minorplanetcenter.org/iau/lists/Centaurs.html. 
  3. ↑ 3.0 3.1 Marc W. Buie (2008-03-05). "Orbit Fit and Astrometric record for 06QH181". SwRI (Space Science Department). http://www.boulder.swri.edu/~buie/kbo/astrom/06QH181.html. 
  4. ↑ 4.0 4.1 4.2 4.3 4.4 4.5 4.6 "JPL Small-Body Database Browser: (2006 QH181)". http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2006QH181. 
  5. ↑ "Absolute Magnitude (H)". NASA/JPL. http://neo.jpl.nasa.gov/glossary/h.html. 
  6. ↑ Wm. Robert Johnston. "List of Known Trans-Neptunian Objects". Johnston's Archive. http://www.johnstonsarchive.net/astro/tnoslist.html. 
  7. ↑ 7.0 7.1 7.2 "AstDyS 2006QH181 Ephemerides". Department of Mathematics, University of Pisa, Italy. https://newton.spacedys.com/astdys/index.php?pc=1.1.3.0&n=2006QH181. 
  8. ↑ "Horizon Online Ephemeris System". California Institute of Technology, Jet Propulsion Laboratory. http://ssd.jpl.nasa.gov/horizons.cgi?find_body=1&body_group=sb&sstr=2006QH181. 
  9. ↑ "AstDyS (136199) Eris Ephemerides". Department of Mathematics, University of Pisa, Italy. https://newton.spacedys.com/astdys/index.php?pc=1.1.3.0&n=Eris. 
  10. ↑ "AstDyS 2007OR10 Ephemerides". Department of Mathematics, University of Pisa, Italy. https://newton.spacedys.com/astdys/index.php?pc=1.1.3.0&n=2007OR10. 
  11. ↑ "AstDyS (90377) Sedna Ephemerides". Department of Mathematics, University of Pisa, Italy. https://newton.spacedys.com/astdys/index.php?pc=1.1.3.0&n=Sedna. 
  12. ↑ "2006 QH181". Minor Planet Center, IAU. http://www.minorplanetcenter.net/db_search/show_object?object_id=2006+QH181. 

External links




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