(87269) 2000 OO67

(87269) 2000 OO₆₇ (provisional designation 2000 OO₆₇) is a trans-Neptunian object, approximately 64 kilometers (40 miles) in diameter, on a highly eccentric orbit in the outermost region of the Solar System. It was discovered by astronomers at the Chilean Cerro Tololo Inter-American Observatory on 29 July 2000.

Celestia distant object orbits

(87269) 2000 OO₆₇

Discovery
Discovered by	Cerro Tololo Obs.
Discovery site	Cerro Tololo Obs.
Discovery date	29 July 2000
Designations
Alternative designations	2000 OO67
Minor planet category	TNO[1] · centaur (DES)[2]
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 2
Observation arc	2187 days (5.99 yr)
Earliest precovery date	29 July 2000
Aphelion	1,041.743 AU (155.8425 Tm)
Perihelion	20.7305754 AU (3.10124994 Tm)
Semi-major axis	531.2369251 AU (79.47191283 Tm)
Eccentricity	0.9609768
Orbital period (sidereal)	11760.29 yr (4295446.2 d)
Average orbital speed	0.88 km/s
Mean anomaly	0.328967°
Mean motion	0° 0m 0.302s / day
Inclination	20.0729°
Longitude of ascending node	142.391°
Argument of perihelion	212.345°
Uranus MOID	1.82 AU (0.272 Tm)[3]
TJupiter	5.265
Physical characteristics
Mean diameter	64 km (est. at 0.09)[4]
Temperature	~12 K
Absolute magnitude (H)	9.2[1]

Description

At aphelion it is over 1,000 AU from the Sun and, with a perihelion of 21 AU, almost crosses the orbit of Uranus at closest approach. Astronomers with the Deep Ecliptic Survey classify it as a centaur rather than a trans-Neptunian object.^[2][5] 2000 OO₆₇ came to perihelion in April 2005.^[2][1][6] Both 2000 OO₆₇ and 2006 SQ₃₇₂ are calculated to take longer than Sedna to orbit the Sun using either heliocentric coordinates or barycentric coordinates.

Comparison

The orbits of Sedna, 2012 VP113, Leleākūhonua, and other very distant objects along with the predicted orbit of Planet Nine. The three sednoids (pink) along with the red-colored extreme trans-Neptunian object (eTNO) orbits are suspected to be aligned with the hypothetical Planet Nine while the blue-colored eTNO orbits are anti-aligned. The highly elongated orbits colored brown include centaurs and damocloids with large aphelion distances over 200 AU.

See also

• 2002 RN109
• 2005 VX3
• (308933) 2006 SQ372
• 2007 TG422
• TAU (spacecraft) (probe designed to go 1000 AU in 50 years)
• List of Solar System objects by greatest aphelion

References

1. "JPL Small-Body Database Browser: 87269 (2000 OO67)" (2006-07-25 last obs). Retrieved 12 April 2016.
2. Marc W. Buie. "Orbit Fit and Astrometric record for 87269" (2006-07-25 using 33 of 34 obs). Deep Ecliptic Survey. Retrieved 2008-05-18.
3. "(87269) = 2000 OO67". IAU minor planet center. Archived from the original on 2013-06-26. Retrieved 2017-02-22.
4. "Asteroid Size Estimator". CNEOS NASA/JPL. Retrieved 3 March 2020.
5. Emel’yanenko, V.V. (2006). "Structure and Dynamics of the Centaur Population: Constraints on the Origin of Short-Period Comets". Earth, Moon, and Planets. 97 (3–4): 341–351. doi:10.1007/s11038-006-9095-5. S2CID 122072238.
6. Yeomans, Donald K. "Horizons Online Ephemeris System". California Institute of Technology, Jet Propulsion Laboratory. Retrieved 2008-01-25.

External links

• List Of Centaurs and Scattered-Disk Objects at the Minor Planet Center
• (87269) 2000 OO67 at AstDyS-2, Asteroids—Dynamic Site
  • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
• (87269) 2000 OO67 at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters