(469987) 2006 HJ123
Trans-Neptunian object (TNO)
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(469987) 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]
Discoverydate27 April 2006
2006 HJ123
| 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° | |
| â 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 â110.8 km[5] |
| 0.136+0.308 â0.089[5] | |
| Temperature | ~44 K |
| 5.32 ± 0.66,[5] | |
The size of 2006 HJ123 was measured by the Herschel Space Telescope to be 283+142
â111 km.[5]
