| Discovery | |
|---|---|
| Discovered by | Mauna Kea Observatory |
| Discovery date | 28 April 1998 |
| Designations | |
| plutino (TNO) | |
| Orbital characteristics[1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 3 | |
| Observation arc | 1178 days (3.23 yr) |
| Aphelion | 48.529 AU (7.2598 Tm) |
| Perihelion | 30.347 AU (4.5398 Tm) |
| 39.438 AU (5.8998 Tm) | |
| Eccentricity | 0.23052 |
| 247.67 yr (90462.3 d) | |
| 25.159° | |
| 0° 0m 14.327s / day | |
| Inclination | 5.9365° |
| 50.194° | |
| 180.55° | |
| Physical characteristics | |
| Dimensions | 134 km (Johnston's archive) |
| 0.09 (assumed) | |
| (Blueish;lowest TNO B-V) B-V=0.51; V-R=0.43[2] | |
| 7.6 | |
(91133) 1998 HK151 (provisional designation 1998 HK151) is a resonant trans-Neptunian object from the Kuiper belt, located in the outermost region of the Solar System. It measures approximately 134 kilometers in diameter. It was discovered by astronomers at the Mauna Kea Observatory on 28 April 1998.[1]