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2006 QH181

2006 QH181
2006 QH181 imaged by the Hubble Space Telescope in 2010
Discovery[1]
Discovery siteCerro Tololo Obs.
Discovery date21 August 2006
Designations
2006 QH181
TNO[2] · SDO[3][4] · distant[1]
Orbital characteristics[1]
Epoch 13 September 2023 (JD 2460200.5)
Uncertainty parameter 5
Observation arc14.18 yr (5,178 days)
Aphelion93.977 AU
Perihelion38.774 AU
66.375 AU
Eccentricity0.4158
541 yr
113.85°
0° 0m 6.561s / day
Inclination19.063
73.85
208.75
Physical characteristics
350–560 km (est. 0.08–0.20)[5]
4.62[2][1]

2006 QH181 (provisional designation 2006 QH181) is a trans-Neptunian object (TNO) in the scattered disc.[3][4]

Orbit

Diagram of 2006 QH181's orbit

2006 QH181 orbits the Sun beyond Neptune with an orbital period of 541 years. It has an highly elliptical orbit with a semi-major axis of 66.4 astronomical units (AU) and an orbital eccentricity of 0.42. In its eccentric orbit, 2006 QH181 comes within 38.8 AU from the Sun at perihelion and 94.0 AU at aphelion. It has an orbital inclination of about 19° with respect to the ecliptic.[2]

Distance

See also: List of Solar System objects most distant from the Sun

It came to perihelion around 1858.[2] It is currently 83.8 AU from the Sun[6] and moving away from the Sun at 1.04 kilometers per second (2,300 miles per hour).[7] The only large objects currently farther from the Sun are Eris (96.1 AU),[8] 2014 UZ224 (90.9 AU), 2015 TH367 (~89 AU), Gonggong (88.0 AU),[9] Sedna (85.1 AU),[10] 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.[6]

See also

References

  1. ^ a b c d "2006 QH181". Minor Planet Center, IAU. Retrieved 5 February 2014.
  2. ^ a b c d "JPL Small-Body Database Browser: (2006 QH181)" (2020-10-24 last obs.). Jet Propulsion Laboratory. Retrieved 19 December 2023.
  3. ^ a b "List Of Centaurs and Scattered-Disk Objects". MPC. Retrieved 3 March 2007.
  4. ^ a b Marc W. Buie (5 March 2008). "Orbit Fit and Astrometric record for 06QH181". SwRI (Space Science Department). Retrieved 28 February 2014.
  5. ^ "Absolute Magnitude (H)". NASA/JPL. Archived from the original on 1 September 2008. Retrieved 29 July 2008.
  6. ^ a b "AstDyS 2006QH181 Ephemerides". Department of Mathematics, University of Pisa, Italy. Retrieved 6 April 2014.
  7. ^ "Horizon Online Ephemeris System". California Institute of Technology, Jet Propulsion Laboratory. Retrieved 22 January 2009.
  8. ^ "AstDyS (136199) Eris Ephemerides". Department of Mathematics, University of Pisa, Italy. Retrieved 31 January 2012.
  9. ^ "AstDyS 2007OR10 Ephemerides". Department of Mathematics, University of Pisa, Italy. Retrieved 31 January 2012.
  10. ^ "AstDyS (90377) Sedna Ephemerides". Department of Mathematics, University of Pisa, Italy. Retrieved 31 January 2012.

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