(202421) 2005 UQ513
Classical Kuiper belt object
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(202421) 2005 UQ513 (provisional designation 2005 UQ513) is a classical Kuiper belt object with an absolute magnitude of 3.91, and estimated to be around 400 to 600 kilometres (200 to 400 miles) in diameter.[2] Its spectrum has a weak signature of absorption by water ice.[9][10] Like Quaoar, it has a very red spectrum,[11][12] which indicates that its surface probably contains many complex, processed organic molecules.[11] Its light curve shows variations of Îm=0.3 mag, but no period has been determined.[12]
| Discovery[1] | |
|---|---|
| Discovered by | M. E. Brown D. L. Rabinowitz C. A. Trujillo |
| Discovery date | 21 October 2005[2] |
| Designations | |
| (202421) 2005 UQ513 | |
| classical (MPC)[3] ScatExt (DES)[4] | |
| Orbital characteristics[2][5] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 3 | |
| Observation arc | 8474 days (23.20 yr) |
| Earliest precovery date | 15 September 1990 |
| Aphelion | 49.689 AU (7.4334 Tm) (Q) |
| Perihelion | 36.713 AU (5.4922 Tm) (q) |
| 43.201 AU (6.4628 Tm) (a) | |
| Eccentricity | 0.15018 (e) |
| 283.95 yr (103713 d) | |
| 223.93° (M) | |
| 0° 0m 12.496s / day (n) | |
| Inclination | 25.7315° (i) |
| 307.8679° (Ω) | |
| â 30 July 2123[6] ±3 days | |
| 221.89° (Ï) | |
| Known satellites | 0 |
| Earth MOID | 35.763 AU (5.3501 Tm) |
| Jupiter MOID | 31.568 AU (4.7225 Tm) |
| TJupiter | 5.253 |
| Physical characteristics | |
| Dimensions | 498+63 â75 km[7]:â18â |
| 7.03 h (0.293 d) | |
| 7.03 hr?[2] | |
| 0.202+0.084 â0.049[7]:â18â | |
| 20.8 [8] | |
| 3.91 [2] | |
Classification
2005 UQ513 has a perihelion of 37.3 AU.[2] The Minor Planet Center (MPC) classifies it as a classical Kuiper belt object (cubewano)[3] while the Deep Ecliptic Survey (DES) classifies it as ScatExt (scattered-extended).[4] Although dynamically it would have been a good candidate to be a member of the Haumea collisional family, given its red spectrum, it is probably not.[11][12]
Distance
As of December 2018, it is currently 48.0 AU from the Sun.[8] It will come to perihelion in 2123.[6]
It has been observed 194 times over 14 oppositions with precovery images back to 1990.[2]