| Discovery[1] | |
|---|---|
| Discovered by | Marc W. Buie |
| Discovery date | 27 April 2006 |
| Designations | |
| 2006 HJ123 | |
| TNO (plutino)[2] | |
| Orbital characteristics[3] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 3 | |
| Observation arc | 1838 days (5.03 yr) |
| Aphelion | 51.444 AU (7.6959 Tm) |
| Perihelion | 27.626 AU (4.1328 Tm) |
| 39.535 AU (5.9144 Tm) | |
| Eccentricity | 0.30123 |
| 248.59 yr (90798.1 d) | |
| 309.05° | |
| 0° 0m 14.273s /day | |
| Inclination | 12.433° |
| 222.53° | |
| ≈ 26 April 2051[4] ±1 days | |
| 101.59° | |
| Earth MOID | 26.636 AU (3.9847 Tm) |
| Jupiter MOID | 22.7401 AU (3.40187 Tm) |
| Physical characteristics | |
| Dimensions | 283.1+142.3 −110.8 km[5] |
| 0.136+0.308 −0.089[5] | |
| Temperature | ~44 K |
| 5.32 ± 0.66,[5] 5.7[3] | |
2006 HJ123 (also written 2006 HJ123) is a trans-Neptunian object (TNO). It was discovered in 2006 by Marc W. Buie. The object is a plutino (in 2:3 resonance with Neptune).[2]
Physical properties
The size of 2006 HJ123 was measured by the Herschel Space Telescope to be 283+142
−111 km.[5]
References
- ↑ "List Of Transneptunian Objects". IAU Minor Planet Center. Retrieved 14 May 2012.
- 1 2 Marsden, Brian G. (11 June 2006). "MPEC 2006-L50 : 2006 HF123, 2006 HG123, 2006 HH123, 2006 HJ123". IAU Minor Planet Center. Harvard-Smithsonian Center for Astrophysics. Retrieved 14 May 2012.
- 1 2 "JPL Small-Body Database Browser: (2006 HJ123)" (2012-05-14 last obs). Retrieved 30 March 2016.
- ↑ JPL Horizons Observer Location: @sun (Perihelion occurs when deldot changes from negative to positive. Uncertainty in time of perihelion is 3-sigma.)
- 1 2 3 4 Mommert, Michael; Harris, A. W.; Kiss, C.; Pál, A.; Santos-Sanz, P.; Stansberry, J.; Delsanti, A.; Vilenius, E.; Müller, T. G.; Peixinho, N.; Lellouch, E.; Szalai, N.; Henry, F.; Duffard, R.; Fornasier, S.; Hartogh, P.; Mueller, M.; Ortiz, J. L.; Protopapa, S.; Rengel, M.; Thirouin, A. (May 2012). "TNOs are cool: A survey of the trans-Neptunian region—V. Physical characterization of 18 Plutinos using Herschel-PACS observations". Astronomy & Astrophysics. 541: A93. arXiv:1202.3657. Bibcode:2012A&A...541A..93M. doi:10.1051/0004-6361/201118562.
External links
- (469987) 2006 HJ123 at AstDyS-2, Asteroids—Dynamic Site
- (469987) 2006 HJ123 at the JPL Small-Body Database
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