| Discovery[1] | |
|---|---|
| Discovered by | Mount Lemmon Survey (Pan-STARRS) |
| Discovery site | Mount Lemmon |
| Discovery date | 22 October 2014 |
| Designations | |
| (472271) 2014 UM33 | |
| 2014 UM33 · 2010 TQ182 | |
| TNO | |
| Orbital characteristics[2] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 3 | |
| Observation arc | 20.00 yr (>8,000 days) |
| Earliest precovery date | 16 October 2003 |
| Aphelion | 49.631 AU |
| Perihelion | 36.163 AU |
| 42.897 AU | |
| Eccentricity | 0.1570 |
| 280.96 yr (102,622 days) | |
| 269.23° | |
| 0° 0m 12.6s / day | |
| Inclination | 17.403° |
| 236.58° | |
| 269.24° | |
| Physical characteristics | |
| Dimensions | 320–720 km[3] 478 km[4] 607 km[5] 220–880[6] |
| 21–22 | |
| 4.9[2] 4.95[1] 5.2[4] | |
(472271) 2014 UM33 (provisional designation 2014 UM33) is a trans-Neptunian object residing in the outer Kuiper belt. It was discovered on October 22, 2014, by the Mount Lemmon Survey.
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 January 2009 and Palomar Observatory from October 2003.
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Largest Universe Size Comparison Part 49: 400 km - 550 km
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See also
References
- ^ a b "472271 (2014 UM33)". Minor Planet Center. Retrieved 7 June 2023.
- ^ a b "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.
- ^ a b 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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This page was last edited on 19 January 2024, at 19:56