Astronomy:(472271) 2014 UM33

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(472271) 2014 UM33
Discovery[1]
Discovered byMount Lemmon Survey (Pan-STARRS)
Discovery siteMount Lemmon
Discovery date22 October 2014
Designations
(472271) 2014 UM33
2014 UM33 · 2010 TQ182
Minor planet categoryTNO
Orbital characteristics[2]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 3
Observation arc20.00 yr (>8,000 days)
Earliest precovery date16 October 2003
|{{{apsis}}}|helion}}49.631 AU
|{{{apsis}}}|helion}}36.163 AU
42.897 AU
Eccentricity0.1570
Orbital period280.96 yr (102,622 days)
Mean anomaly269.23°
Mean motion0° 0m 12.6s / day
Inclination17.403°
Longitude of ascending node236.58°
269.24°
Physical characteristics
Dimensions320–720 km[3]
478 km[4]
607 km[5]
220–880[6]
Apparent magnitude21–22
Absolute magnitude (H)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.

See also

References

  1. ↑ 1.0 1.1 "472271 (2014 UM33)". Minor Planet Center. https://www.minorplanetcenter.net/db_search/show_object?object_id=472271. 
  2. ↑ 2.0 2.1 "JPL Small-Body Database Browser: 472271 (2014 UM33)". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2472271. 
  3. ↑ "Glossary: Absolute Magnitude (H)". NASA. http://neo.jpl.nasa.gov/glossary/h.html. 
  4. ↑ 4.0 4.1 Brown, Mike. "How many dwarf planets are there in the outer solar system? (updates daily)". Caltech. http://web.gps.caltech.edu/~mbrown/dps.html. 
  5. ↑ Wm. Robert Johnston (24 March 2015). "List of Known Trans-Neptunian Objects". Johnston's Archive. http://www.johnstonsarchive.net/astro/tnoslist.html. 
  6. ↑ Bruton, Dan. "Conversion of Absolute Magnitude to Diameter". SFASU – Department of Physics and Astronomy. http://www.physics.sfasu.edu/astro/asteroids/sizemagnitude.html. 

External links




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