(501546) 2014 JJ80
| Discovery[1] | |
|---|---|
| Discovered by | Pan-STARRS 1 |
| Discovery site | Haleakalā Obs. |
| Discovery date | 9 July 2013 |
| Designations | |
| (501546) 2014 JJ80 | |
| 2014 JJ80 | |
| TNO[2] · other[3] p-DP[4] · distant[1] | |
| Orbital characteristics[2] | |
| Epoch 27 April 2019 (JD 2458600.5) | |
| Uncertainty parameter 2 | |
| Observation arc | 6.92 yr (2,526 d) |
| Aphelion | 55.066 AU |
| Perihelion | 31.297 AU |
| 43.182 AU | |
| Eccentricity | 0.2752 |
| 283.76 yr (103,645 d) | |
| 342.32° | |
| 0° 0m 12.6s / day | |
| Inclination | 18.674° |
| 261.43° | |
| ≈ 18 July 2033[5] | |
| 97.702° | |
| Physical characteristics | |
Mean diameter | 344 km (est.)[4] 352 km (est.)[3] |
| 0.08 (assumed)[4] 0.09 (assumed)[3] | |
| 5.5[1][2] | |
(501546) 2014 JJ80, prov. designation: 2014 JJ80, is a trans-Neptunian object from the outermost region of the Solar System. It was discovered on 9 July 2013, by astronomers with the Pan-STARRS survey at Haleakala Observatory, Hawaii, United States.[1] It is a dwarf planet candidate, as it measures approximately 350 kilometers (220 miles) in diameter.
Orbit and classification[edit]
2014 JJ80 orbits the Sun at a distance of 31.3–55.1 AU once every 283 years and 9 months (103,645 days; semi-major axis of 43.18 AU). Its orbit has an eccentricity of 0.28 and an inclination of 19° with respect to the ecliptic.[2] The body's observation arc begins at Haleakalā with a precovery taken in August 2010, nearly 3 years prior to its official discovery observation.[1]
Numbering and naming[edit]
This minor planet was numbered by the Minor Planet Center on 5 October 2017 and received the number 501546 in the minor planet catalog (M.P.C. 106396).[6] As of 2021, it has not been named.[1]
Physical characteristics[edit]
According to American astronomer Michael Brown and the Johnston's archive, 2014 JJ80 measures 344 and 352 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 2021, 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][7]
References[edit]
- ^ a b c d e f "501546 (2014 JJ80)". Minor Planet Center. Retrieved 3 December 2018.
- ^ a b c d e "JPL Small-Body Database Browser: 501546 (2014 JJ80)" (2017-07-19 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.
- ^ JPL Horizons Observer Location: @sun (Perihelion occurs when deldot changes from negative to positive. Uncertainty in time of perihelion is 3-sigma.)
- ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 3 December 2018.
- ^ "LCDB Data for (501546)". Asteroid Lightcurve Database (LCDB). Retrieved 3 December 2018.
External links[edit]
- MPEC 2016-O84 : 2014 JJ80, Minor Planet Electronic Circular, 17 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
- (501546) 2014 JJ80 at AstDyS-2, Asteroids—Dynamic Site
- (501546) 2014 JJ80 at the JPL Small-Body Database
