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 | |
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.
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]
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]
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]
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 | |
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.
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]
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]
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]