(523683) 2014 CP₂₃, provisional designation 2014 CP₂₃, is a trans-Neptunian object from the scattered disc located in the outermost region of the Solar System It was discovered on 29 October 2011, by astronomers with the Pan-STARRS survey at Haleakala Observatory, Hawaii, United States.[1] The dwarf planet candidate measures approximately 267 kilometers (170 miles) in diameter.

Orbit and classification

2014 CP₂₃ orbits the Sun at a distance of 38.1–66.5 AU once every 378 years and 5 months (138,225 days; semi-major axis of 52.32 AU). Its orbit has an eccentricity of 0.27 and an inclination of 29° with respect to the ecliptic.[2] It is a scattered-disc object on a moderately eccentric orbit that never comes closer than 8 AU to the orbit of Neptune.

The body's observation arc begins with a precovery taken by the Sloan Digital Sky Survey in January 2003, or more than 8 years prior to its official discovery observation at Haleakala Observatory.[1]

Numbering and naming

This minor planet was numbered by the Minor Planet Center on 25 September 2018 and received the number 523683 in the minor planet catalog (M.P.C. 111779).[5] As of 2018, it has not been named.[1]

Physical characteristics

According to American astronomer Michael Brown and the Johnston's archive, 2014 CP₂₃ measures 266 and 267 kilometers in diameter based on an assumed albedo of 0.08 and 0.09, respectively.[3][4] 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.[4] 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.[2][6]

References

External links

• MPEC 2016-O125: 2014 CP23, Minor Planet Electronic Circular, 17 July 2016
• M.P.E.C. statistics for F51 – All MPECs
• List Of Centaurs and Scattered-Disk Objects, Minor Planet Center
• Discovery Circumstances: Numbered Minor Planets (520001)-(525000) – Minor Planet Center
• (523683) 2014 CP23 at AstDyS-2, Asteroids—Dynamic Site
  • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
• (523683) 2014 CP23 at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters