2013 FS28

Trans-Neptunian object in the scattered disc October 2017 yes 2013 FS 28 #C2E0FF 2013_FS28-orbit.png Orbit of 2013 FS 28 (first observed only)S. S. SheppardC. Trujillo Cerro Tololo Obs. 16 March 2013 2013 FS 28 TNOESDOETNOdistant 2021-Jul-01 (JD 2459396.5) 5 7.85 yr (2866 d) 241.1 2 AU (Q) 35.64 0.05 AU (q) ≈ December 2119JPL Horizons Observer Location: @sun (perihelion occurs when deldot changes from negative to positive)±1 yearperihelion 138.4 1.2 AU (a) 13.09 0.002 ° (i) 0.742 0.003 (e) 1627 22 years 338 0.35 ° (M) 0.0004 ms / day 204.6 0.001 ° (Ω) 104.8 0.09 ° (ω) 9.1 AU 0 464 km (est.)468 km (est.) 0.07 (assumed)0.09 (assumed) 4.9 2013 FS 28 is an extreme trans-Neptunian object from the extended scattered disc on a highly eccentric orbit in the outermost region of the Solar System. It measures approximately 470 km mi off 2 us in diameter. The detached, extended scattered disc object belongs to the group of extreme trans-Neptunian objects. Discovery and naming 2013 FS 28 was discovered on 16 March 2013, by American astronomers Scott Sheppard and Chad Trujillo at the Cerro Tololo Observatory in Chile. As of 2025, this minor planet has neither been numbered nor named by the Minor Planet Center. The official discoverer(s) will be defined when the object is numbered. Orbit and classification 2013 FS 28 is 83 AU e9km unit on from the Sun with a 7 year observation arc. It orbits the Sun at a distance of roughly 36–240 AU once every 1600 years. Its orbit has a high eccentricity of 0.7 and an inclination of 13° with respect to the ecliptic. It has a minimum orbital intersection distance with Neptune of 9 AU. The body's observation arc begins with its first official observation in March 2013, using the 4-meter Blanco Telescope at Cerro Tololo Observatory 807. It belongs to a small group of detached objects with perihelion distances of 30 AU or more, and semi-major axes of 150 AU or more. Such extreme trans-Neptunian objects (ETNOs) can not reach such orbits without some perturbing object, which lead to the speculation of Planet Nine. It comes to perihelion (closest approach to the Sun) around December 2119.perihelion Physical characteristics According to Johnston's Archive and to American astronomer Michael Brown, 2013 FS 28 measures 464 and 468 kilometers in diameter based on an assumed albedo of 0.09 and 0.07, respectively. As of 2018, no rotational lightcurve of has been obtained from photometric observations. The body's rotation period, pole and shape remain unknown. See also List of unnumbered trans-Neptunian objects 2013 FS28 Notes perihelion Uncertainty in the perihelion date is 95 days (1-sigma) or 285 days (3-sigma). References 30em 2014-05-02 last obs. JPL Small-Body Database Browser: (2013 FS28) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=3757867 Jet Propulsion Laboratory 25 October 2018 2013 FS28 Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=2013+FS28 25 October 2018 S. S. Sheppard C. Trujillo August 2016 2013 FS28 https://minorplanetcenter.net//mpec/K16/K16Q38.html Minor Planet Electronic Circular 2016-Q38 2016–Q38 2016MPEC....Q...38S 25 October 2018 List Of Centaurs and Scattered-Disk Objects Minor Planet Center https://www.minorplanetcenter.net/iau/lists/t_centaurs.html 25 October 2018 Database Query: objects q>30, a>150 Minor Planet Center http://minorplanetcenter.net/db_search/show_by_properties?perihelion_distance_min=30&semimajor_axis_min=150 25 October 2018 List of Known Trans-Neptunian Objects Johnston's Archive 7 October 2018 http://www.johnstonsarchive.net/astro/tnoslist.html 25 October 2018 How many dwarf planets are there in the outer solar system? California Institute of Technology Brown Michael E. http://web.gps.caltech.edu/~mbrown/dps.html 25 October 2018 2013 FS28 25 October 2018 External links List Of Centaurs and Scattered-Disk Objects, Minor Planet Center 2013FS28 3757867 # # Category:Minor planet object articles (unnumbered) 20130316