2017 FO161 is a large trans-Neptunian object from the scattered disc located in the outermost region of the Solar System. It is estimated to measure approximately 600 kilometers (370 mi) in diameter and currently orbits at a distance of about 78.5 AU from the Sun.[1][3][4] The object was first observed by American astronomers Chad Trujillo and Scott Sheppard using the 4-meter Víctor M. Blanco Telescope at the Cerro Tololo Inter-American Observatory in Chile on 23 March 2017.[2] Precovery observations were made by the Pan-STARRS-1 survey at Haleakalā Observatory and by the Dark Energy Survey with DECam, dating back as far as March 2012 and January 2016, respectively.[1]
 Orbital diagram of 2017 FO161 | |
| Discovery[1][2] | |
|---|---|
| Discovered by | CTIO |
| Discovery site | CTIO |
| Discovery date | 23 March 2017 |
| Designations | |
| 2017 FO161 | |
| TNO[3] · SDO[4] distant[1] | |
| Orbital characteristics[3] | |
| Epoch 31 May 2020 (JD 2459000.5) | |
| Uncertainty parameter 4 | |
| Observation arc | 11.11 yr (~4,000 d) |
| Earliest precovery date | 19 March 2012[5] |
| Aphelion | 85.459 AU |
| Perihelion | 34.069 AU |
| 59.764 AU | |
| Eccentricity | 0.42994 |
| 462.03 yr (168,756 d) | |
| 240.958° | |
| 0° 0m 7.68s / day | |
| Inclination | 54.350° |
| 164.985° | |
| 151.017° | |
| Physical characteristics | |
| 612 km (est. at 0.09)[4] | |
| 0.09 (est.)[4] | |
| 4.3[3] | |
See also
editReferences
edit- ^ a b c d "2017 FO161". Minor Planet Center. Retrieved 6 March 2019.
- ^ a b Trujillo, C.; Sheppard, S. S. (April 2018). "2017 FO161". Minor Planet Electronic Circulars. 2018-G10. Bibcode:2018MPEC....G...10T. ISSN 1523-6714.
- ^ a b c d "JPL Small-Body Database Browser: (2017 FO161)" (2018-03-12 last obs.). Jet Propulsion Laboratory. Retrieved 6 March 2019.
- ^ a b c d Johnston, Wm. Robert (18 August 2020). "List of Known Trans-Neptunian Objects". Johnston's Archive. Retrieved 3 March 2021.
- ^ https://www.minorplanetcenter.net/db_search/show_object?object_id=2017+FO161
External links
edit- The Kuiper Belt Electronic Newsletter, April 2018, Joel Parker, SWRI
- List Of Centaurs and Scattered-Disk Objects, Minor Planet Center
- 2017 FO161 at AstDyS-2, Asteroids—Dynamic Site
- 2017 FO161 at the JPL Small-Body Database
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