2014 FC69
{{Short description|Trans-Neptunian object in the scattered disc}}
{{DISPLAYTITLE:{{mp|2014 FC|69}}}}
{{Use dmy dates|date=September 2021}}
{{Infobox planet
| minorplanet = yes
| name = {{mp|2014 FC|69}}
| background = #C2E0FF
| image = 2014 FC69-orbit.png
| image_scale =
| caption = Orbital diagram of {{mp|2014 FC|69}}
| discovered = 25 March 2014
| discoverer = {{Ubl
}}
| discovery_site = Cerro Tololo Obs.
| mpc_name = {{mp|2014 FC|69}}
| alt_names =
| pronounced =
| named_after =
| mp_category = {{plainlist|
}}
| epoch = 1 July 2021 (JD 2459396.5)
| observation_arc = 1.87 yr (682 d)
| aphelion = 104.21 AU
| perihelion = 40.091 AU
| semimajor = 72.150 AU
| eccentricity = 0.4443
| period = 612.86 yr (223,847 d)
| mean_anomaly = 91.584°
| mean_motion = {{Deg2DMS|0.0016|sup=ms}} / day
| inclination = 30.024°
| asc_node = 250.26°
| arg_peri = 189.01°
| mean_diameter = {{val|533|ul=km}} (est.)
| rotation =
| albedo =
| spectral_type =
}}
{{mp|2014 FC|69}} is a trans-Neptunian object of the scattered disc on an eccentric orbit in the outermost region of the Solar System. It was first observed on 25 March 2014, by American astronomers Scott Sheppard and Chad Trujillo at the Cerro Tololo Observatory in Chile. It is one of the most distant objects from the Sun, even further away than {{dp|Sedna}}.
Orbit and classification
{{As of|2021}} and based on an orbital uncertainty of 6–7 and an observation arc of only 682 days, {{mp|2014 FC|69}} orbits the Sun at a distance of 40.1–104.2 AU once every 612 years and 10 months (223,847 days; semi-major axis of 72.15 AU). Its orbit has an eccentricity of 0.44 and an inclination of 30° with respect to the ecliptic.
Based on the best-fit (albeit uncertain) orbital solution, {{mp|2014 FC|69}} is a scattered disc object, or "near-scattered" in the classification of the Deep Ecliptic Survey, that still interacts gravitationally with Neptune due to its relatively low perihelion of 40.1 AU, contrary to the extended-scattered/detached objects and sednoids which never approach Neptune as close as {{mp|2014 FC|69}} does.
= Most distant objects from the Sun =
{{mp|2014 FC|69}} last came to perihelion around 1865, moving away from the Sun ever since and is currently about 85.6 AU from the Sun, which is further away than the dwarf planet {{dp|Sedna}}. Other than long-period comets, it is the 10th-most-distant known larger body in the Solar System (also see {{section link|List of Solar System objects most distant from the Sun|Known distant objects}}).
Physical characteristics
Based on a generic magnitude-to-diameter conversion from its magnitude of 4.6, {{mp|2014 FC|69}} is approximately {{convert|533|km|mi|abbr=off|sigfig=2|sp=us}} in diameter, assuming an albedo of 0.09.
{{As of|2021}}, no rotational lightcurve for this object has been obtained from photometric observations. The body's rotation period, pole and shape remain unknown.
See also
References
{{reflist|refs=
|type = 2015-01-21 last obs.
|title = JPL Small-Body Database Browser: (2014 FC69)
|url = https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=3709964
|publisher = Jet Propulsion Laboratory
|access-date= 8 September 2021}}
|title = 2014 FC69
|work = Minor Planet Center
|url = https://www.minorplanetcenter.net/db_search/show_object?object_id=2014+FC69
|access-date= 8 September 2021}}
|title=MPEC 2015-C52 : 2014 FC69
|publisher = Minor Planet Center
|date = 2015-02-11
|url = http://www.minorplanetcenter.net/mpec/K15/K15C52.html
|access-date= 2015-11-12}}
|title = List of Known Trans-Neptunian Objects
|publisher = Johnston's Archive
|date = 22 July 2017
|url = http://www.johnstonsarchive.net/astro/tnoslist.html
|access-date= 2 August 2017}}
|title = Orbit Fit and Astrometric record for 14FC69
|work = Southwest Research Institute
|url = https://www.boulder.swri.edu/~buie/kbo/astrom/14FC69.html
|access-date= 8 September 2021}}[https://www.boulder.swri.edu/~buie/kbo/desclass.html The Deep Ecliptic Survey Object Classifications]
|title = Asteroid 2014 FC69 – Ephemerides
|publisher = AstDyS-2, Asteroids – Dynamic Site
|url = https://newton.spacedys.com/astdys/index.php?pc=1.1.3.0&n=2014FC69
|access-date= 8 September 2021}}
|title = Observational Query: objects more than 57.0 AU from the Sun
|publisher = AstDyS-2, Asteroids – Dynamic Site, Department of Mathematics, University of Pisa, Italy
|url = https://newton.spacedys.com/astdys/index.php?pc=3.2.1&pc0=3.2&sb=8&ldfs=57.0
|access-date= 8 September 2021}}
|title = Asteroid Size Estimator
|publisher = CNEOS NASA/JPL
|url = https://cneos.jpl.nasa.gov/tools/ast_size_est.html
|access-date= 8 September 2021}}
}}
External links
- [https://minorplanetcenter.net/iau/lists/TNOs.html List of Transneptunian Objects], Minor Planet Center
- {{AstDys|2014FC69}}
- {{JPL small body|id=3709964}}
{{Trans-Neptunian objects}}
{{Small Solar System bodies}}
{{Authority control}}
{{DEFAULTSORT:2014 FC69}}
Category:Minor planet object articles (unnumbered)
{{CentaurTNO-stub}}