Astronomy:(469987) 2006 HJ123
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| Discovery[1] | |
|---|---|
| Discovered by | Marc W. Buie |
| Discovery date | 27 April 2006 |
| Designations | |
| 2006 HJ123 | |
| Minor planet category | TNO (plutino)[2] |
| Orbital characteristics[4] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 3 | |
| Observation arc | 1838 days (5.03 yr) |
| |{{{apsis}}}|helion}} | 51.444 astronomical unit|AU (7.6959 Tm) |
| |{{{apsis}}}|helion}} | 27.626 AU (4.1328 Tm) |
| 39.535 AU (5.9144 Tm) | |
| Eccentricity | 0.30123 |
| Orbital period | 248.59 yr (90798.1 d) |
| Mean anomaly | 309.05° |
| Mean motion | 0° 0m 14.273s /day |
| Inclination | 12.433° |
| Longitude of ascending node | 222.53° |
| |{{{apsis}}}|helion}} | ≈ 26 April 2051[3] ±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] |
| Geometric albedo | 0.136+0.308−0.089[5] |
| Physics | ~44 K |
| Absolute magnitude (H) | 5.32 ± 0.66,[5] 5.7[4] |
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. http://www.minorplanetcenter.org/iau/lists/TNOs.html.
- ↑ 2.0 2.1 Marsden, Brian G. (2006-06-11). "MPEC 2006-L50 : 2006 HF123, 2006 HG123, 2006 HH123, 2006 HJ123". IAU Minor Planet Center. Harvard-Smithsonian Center for Astrophysics. https://www.minorplanetcenter.net/iau/mpec/K06/K06L50.html.
- ↑ JPL Horizons Observer Location: @sun (Perihelion occurs when deldot changes from negative to positive. Uncertainty in time of perihelion is 3-sigma.)
- ↑ 4.0 4.1 "JPL Small-Body Database Browser: (2006 HJ123)". https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=3335755.
- ↑ 5.0 5.1 5.2 5.3 Mommert, Michael; Harris, A. W.; Kiss, C.; Pál, A.; Santos-Sanz, P.; Stansberry, J.; Delsanti, A.; Vilenius, E. et al. (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. doi:10.1051/0004-6361/201118562. Bibcode: 2012A&A...541A..93M.
External links
- (469987) 2006 HJ123 at AstDyS-2, Asteroids—Dynamic Site
- (469987) 2006 HJ123 at the JPL Small-Body Database
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