(523683) 2014 CP23
| Discovery[1] | |
|---|---|
| Discovered by | Pan-STARRS 1 |
| Discovery site | Haleakalā Obs. |
| Discovery date | 29 October 2011 |
| Designations | |
| (523683) 2014 CP23 | |
| 2014 CP23 | |
| TNO[2] · SDO[3] p-DP[4] · distant[1] | |
| Orbital characteristics[2] | |
| Epoch 27 April 2019 (JD 2458600.5) | |
| Uncertainty parameter 2 | |
| Observation arc | 15.10 yr (5,517 d) |
| Aphelion | 66.519 AU |
| Perihelion | 38.119 AU |
| 52.319 AU | |
| Eccentricity | 0.2714 |
| 378.44 yr (138,225 d) | |
| 356.73° | |
| 0° 0m 9.36s / day | |
| Inclination | 28.510° |
| 145.86° | |
| 22.015° | |
| Physical characteristics | |
| 266 km (est.)[4] 267 km (est.)[3] | |
| 0.08 (assumed)[4] 0.09 (assumed)[3] | |
| 6.1[1][2] | |
(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
[edit]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
[edit]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
[edit]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
[edit]- ^ a b c d e f "523683 (2014 CP23)". Minor Planet Center. Retrieved 3 December 2018.
- ^ a b c d e "JPL Small-Body Database Browser: 523683 (2014 CP23)" (2018-03-07 last obs.). Jet Propulsion Laboratory. Retrieved 3 December 2018.
- ^ a b c d Johnston, Wm. Robert (7 October 2018). "List of Known Trans-Neptunian Objects". Johnston's Archive. Retrieved 3 December 2018.
- ^ a b c d e Brown, Michael E. "How many dwarf planets are there in the outer solar system?". California Institute of Technology. Retrieved 3 December 2018.
- ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 3 December 2018.
- ^ "LCDB Data for (523683)". Asteroid Lightcurve Database (LCDB). Retrieved 3 December 2018.
External links
[edit]- 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
- (523683) 2014 CP23 at the JPL Small-Body Database
