(85627) 1998 HP151 (provisional designation 1998 HP151) is a trans-Neptunian object from the classical Kuiper belt, located in the outermost region of the Solar System. The cubewano belongs to the cold population. It has a perihelion (closest approach to the Sun) at 40.297 AU and an aphelion (farthest approach from the Sun) of 48.306 AU. It is about 146 km in diameter. It was discovered on 28 April 1998, at the Mauna Kea Observatory, Hawaii.
| Discovery | |
|---|---|
| Discovered by | Mauna Kea Observatory[1] |
| Discovery date | 28 April 1998 |
| Designations | |
| (85627) 1998 HP151 | |
| TNO · cubewano[2][3] cold[4] | |
| Orbital characteristics[5] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 3 | |
| Observation arc | 3302 days (9.04 yr) |
| Aphelion | 47.92187 AU (7.169010 Tm) |
| Perihelion | 40.25486 AU (6.022041 Tm) |
| 44.08836 AU (6.595525 Tm) | |
| Eccentricity | 0.086951 |
| 292.75 yr (106926 d) | |
Average orbital speed | 4.47 km/s |
| 315.815° | |
| 0° 0m 12.121s / day | |
| Inclination | 1.51240° |
| 55.9363° | |
| 249.275° | |
| Physical characteristics | |
| 146 km[6] | |
| 7.4 | |
References
edit- ^ "List of Transneptunian Objects". Minor Planet Center. Archived from the original on 19 June 2007.
- ^ "MPEC 2009-R09 :Distant Minor Planets (2009 SEPT. 16.0 TT)". IAU Minor Planet Center. 4 September 2009. Retrieved 4 October 2009.
- ^ Marc W. Buie. "Orbit Fit and Astrometric record for 85627". SwRI (Space Science Department). Retrieved 4 October 2009.
2007-05-13 using 37 observations
- ^ Brown, Mike (14 October 2013). "How many dwarf planets are there in the outer solar system?". California Institute of Technology. Archived from the original on 15 October 2013. Retrieved 18 February 2018.
- ^ "85627 (1998 HP151)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 8 April 2016.
- ^ Johnston, Wm. Robert (7 October 2018). "List of Known Trans-Neptunian Objects". Johnston's Archive. Retrieved 14 November 2018.
External links
edit- (85627) 1998 HP151 at AstDyS-2, Asteroids—Dynamic Site
- (85627) 1998 HP151 at the JPL Small-Body Database
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