2014 UM33
| Discovery[1] | |
|---|---|
| Discovered by | Mount Lemmon Survey (Pan-STARRS) |
| Discovery date | October 22, 2014 (October 7, 2010) |
| Designations | |
| Trans-Neptunian object (TNO) | |
| Orbital characteristics[2] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 4 | |
| Observation arc | 2412 days (6.60 yr) |
| Aphelion | 49.689 AU (7.4334 Tm) |
| Perihelion | 36.1958 AU (5.41481 Tm) |
| 42.9422 AU (6.42406 Tm) | |
| Eccentricity | 0.15710 |
| 281.41 yr (102784 d) | |
| 268.940° | |
| 0° 0m 12.609s / day | |
| Inclination | 17.39076° |
| 236.59289° | |
| 268.854° | |
| Earth MOID | 35.2546 AU (5.27401 Tm) |
| Jupiter MOID | 31.1459 AU (4.65936 Tm) |
| Physical characteristics | |
| Dimensions |
320–720 km[3] 478 km[4] 607 km[5] 220-880[6] |
| 21–22 | |
|
4.9,[1] 4.9,[2] 5.2[4] | |
|
| |
2014 UM33 (2010 TQ182) is a possible dwarf planet and trans-Neptunian object residing in the outer Kuiper belt. It was discovered on October 22, 2014 by the Mount Lemmon Survey. Its orbit was initially poorly determined, with 17 observations over 62 days, giving it an orbital uncertainty of 8. It is listed on Mike Brown's website as a probable dwarf planet, ranked 56th most likely.[4] It is approximately the size of 2 Pallas in the asteroid belt. On August 18, 2015, 2014 UM33 was found to have been discovered over four years previously, with the designation 2010 TQ182. This extended its observation arc to over 4 years, and then precovery observations were found using the Sloan Digital Sky Survey from 2009.
See also
References
- 1 2 "IAU Minor Planet Center - 2014 UM33". Minor Planet Center. International Astronomical Union. Retrieved 2 January 2015.
- 1 2 "Jet Propulsion Laboratory - Small Body Database". Jet Propulsion Laboratory. NASA. Retrieved 4 April 2016.
- ↑ "Glossary: Absolute Magnitude (H)". JPL. NASA. Retrieved 2 January 2015.
- 1 2 3 Brown, Mike. "How many dwarf planets are there in the outer solar system? (updates daily)". http://web.gps.caltech.edu/~mbrown. Caltech. Retrieved 21 July 2015. External link in
|website=(help) - ↑ Wm. Robert Johnston (24 March 2015). "List of Known Trans-Neptunian Objects". Johnston's Archive. Retrieved 21 July 2015.
- ↑ Bruton, Dan. "Conversion of Absolute Magnitude to Diameter". http://www.physics.sfasu.edu. sfasu.edu. Retrieved 18 August 2015. External link in
|website=(help)
External links
- 2014 UM33 at the JPL Small-Body Database
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