- Source: (501581) 2014 OB394
(501581) 2014 OB394, provisional designation 2014 OB394, is a trans-Neptunian object from the outermost region of the Solar System, approximately 260 kilometers (160 miles) in diameter. It was discovered on 25 August 2012, by astronomers with the Pan-STARRS survey at Haleakala Observatory, Hawaii, United States. The weak dwarf planet candidate was numbered in 2017 and remains without a name.
Orbit and classification
2014 OB394 orbits the Sun at a distance of 35.0–58.2 AU once every 318 years and 5 months (116,302 days; semi-major axis of 46.63 AU). Its orbit has an eccentricity of 0.25 and an inclination of 21° with respect to the ecliptic. The body's observation arc begins with its official discovery observation at Haleakala Observatory in August 2012.
Numbering and naming
This minor planet was numbered by the Minor Planet Center on 5 October 2017 and received the number 501581 in the minor planet catalog (M.P.C. 106397). As of 2018, it has not been named.
Physical characteristics
According to American astronomer Michael Brown and the Johnston's archive, 2014 OB394 measures 255 and 267 kilometers in diameter based on an assumed albedo of 0.08 and 0.09, respectively. On his website, Brown lists this object as a "possible" dwarf planet (200–400 km), which is the category with the lowest certainty in his 5-class taxonomic system. As of 2018, no spectral type and color indices, nor a rotational lightcurve have been obtained from spectroscopic and photometric observations. The body's color, rotation period, pole and shape remain unknown.
References
External links
MPEC 2016-O53 : 2014 OB394, Minor Planet Electronic Circular, 16 July 2017
M.P.E.C. statistics for F51 – All MPECs
List of Transneptunian Objects, Minor Planet Center
Discovery Circumstances: Numbered Minor Planets (500001)-(505000) – Minor Planet Center
(501581) 2014 OB394 at AstDyS-2, Asteroids—Dynamic Site
Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
(501581) 2014 OB394 at the JPL Small-Body Database
