astro.wikisort.org - Asteroid
(472271) 2014 UM33, provisionally designated 2010 TQ182, is a trans-Neptunian object residing in the outer Kuiper belt. It was discovered on October 22, 2014, by the Mount Lemmon Survey.
| Discovery[1] | |
|---|---|
| Discovered by | Mount Lemmon Survey (Pan-STARRS) |
| Discovery site | Mount Lemmon |
| Discovery date | 22 October 2014 |
| Designations | |
MPC designation | (472271) 2014 UM33 |
Alternative designations | 2014 UM33 · 2010 TQ182 |
Minor planet category | TNO |
| Orbital characteristics[2] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 3 | |
| Observation arc | 11.86 yr (4,332 days) |
| Earliest precovery date | 16 October 2003 |
| Aphelion | 49.631 AU |
| Perihelion | 36.163 AU |
Semi-major axis | 42.897 AU |
| Eccentricity | 0.1570 |
Orbital period (sidereal) | 280.96 yr (102,622 days) |
Mean anomaly | 269.23° |
Mean motion | 0° 0m 12.6s / day |
| Inclination | 17.403° |
Longitude of ascending node | 236.58° |
Argument of perihelion | 269.24° |
| Physical characteristics | |
| Dimensions | 320–720 km[3] 478 km[4] 607 km[5] 220–880[6] |
Apparent magnitude | 21–22 |
Absolute magnitude (H) | 4.9[1][2] 5.2[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
- List of trans-Neptunian objects
References
- "472271 (2014 UM33)". Minor Planet Center. Retrieved 25 October 2016.
- "JPL Small-Body Database Browser: 472271 (2014 UM33)" (2015-08-26 last obs.). Jet Propulsion Laboratory. Retrieved 25 October 2016.
- "Glossary: Absolute Magnitude (H)". JPL. NASA. Archived from the original on 2 March 2001. Retrieved 2 January 2015.
- Brown, Mike. "How many dwarf planets are there in the outer solar system? (updates daily)". www.gps.caltech.edu. Caltech. Retrieved 21 July 2015.
- 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". SFASU – Department of Physics and Astronomy. Archived from the original on 18 December 2008. Retrieved 18 August 2015.
External links
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| Asteroid belt |
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| Cubewanos and other Kuiper belt |
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| Scattered disc |
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| Detached objects |
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| Sednoids |
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 | This article about a centaur (minor planet) or trans-Neptunian object is a stub. You can help Wikipedia by expanding it. |
На других языках
[de] (472271) 2014 UM33
(472271) 2014 UM33 ist ein großes transneptunisches Objekt, das bahndynamisch als erweitertes Scattered Disc Object (DO) oder als Cubewano eingestuft wird. Aufgrund seiner Größe ist der Asteroid ein Zwergplanetenkandidat.- [en] (472271) 2014 UM33
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