2013 FQ28
Perihelion 45.801 AU | | |
| 62.948 AU | ||
| Eccentricity | 0.2724 | |
| 499.44 yr (182,422 d) | ||
| 92.132° | ||
| 0° 0m 7.2s / day | ||
| Inclination | 25.705° | |
| 214.89° | ||
| 229.51° | ||
| Physical characteristics | ||
Mean diameter | ||
| 24.49[8] | ||
| 6.0[1][2] | ||
2013 FQ28 is a
scattered and detached object, located in the outermost region of the Solar System. It was first observed on 17 March 2013, by a team of astronomers at the Cerro Tololo Inter-American Observatory in Chile. It orbits the Sun in a moderate inclined, moderate-eccentricity orbit. The weak dwarf planet candidate
measures approximately 260 kilometers (160 miles) in diameter.
Orbit and classification
2013 FQ28 orbits the Sun at a distance of 45.8–80.1
semi-major axis of 62.95 AU). Its orbit has an eccentricity of 0.27 and an inclination of 26° with respect to the ecliptic.[2]
With an orbital period of 499 years, and similar to perihelia (at 45.8 AU rather than 31–41 AU).
Considered both a
planetary embryos in the early Kuiper belt, and resonance interaction with an outward-migrating Neptune. The Kozai mechanism is capable of transferring orbital eccentricity to a higher inclination.[9]
Physical characteristics
A survey for objects beyond the
2005 TB190, which is estimated at 500 kilometres (310 mi), roughly a quarter the size of Pluto
.
On his website, Brown lists this object as a
References
- ^ a b c d "2013 FQ28". Minor Planet Center. Retrieved 13 December 2018.
- ^ a b c d e "JPL Small-Body Database Browser: (2013 FQ28)" (2015-04-20 last obs.). Jet Propulsion Laboratory. Retrieved 13 December 2018.
- ^ ISBN 3-540-71957-1.
- ^ . Retrieved 12 December 2018.
- ^ a b c d e f Johnston, Wm. Robert (7 October 2018). "List of Known Trans-Neptunian Objects". Johnston's Archive. Retrieved 12 December 2018.
- ^ S2CID 118630570.
- ^ a b c d Brown, Michael E. "How many dwarf planets are there in the outer solar system?". California Institute of Technology. Retrieved 12 December 2018.
- ^ "2013 FQ28 – Ephemerides". AstDyS-2, Asteroids – Dynamic Site, Department of Mathematics, University of Pisa, Italy. Retrieved 12 December 2018.
- S2CID 15588453. (Discovery paper)
External links
- List Of Centaurs and Scattered-Disk Objects, Minor Planet Center
- Discovery Circumstances: Numbered Minor Planets (1)–(5000) – Minor Planet Center
- List of Known Trans-Neptunian Objects, Johnston's Archive
- 2013 FQ28 at AstDyS-2, Asteroids—Dynamic Site
- 2013 FQ28 at the JPL Small-Body Database
