2013 LA2

High-inclination centaur November 2018 yes 2013 LA 2 #C7FF8F Pan-STARRS 1 Pan-STARRS 1 June 2013(first observed only) 2013 LA 2 centaurdamocloidunusualmain-belt 31 May 2020 (JD 2459000.5) 7 41 days 8.331 AU 3.0376 AU 5.6841 AU 0.4656 13.55 yr (4,950 d) 197.7432° 0.0727 ms / day 175.09° 243.90° 325.17° 0.1752 AU 0.8945 AU –0.928 1.8 km (est.) 0.09 (assumed) 16.9 2013 LA 2 is a centaur and damocloid on a cometary-like and retrograde orbit from the outer Solar System, suggesting that it is an extinct comet. It was first observed on 1 June 2013 by astronomers with the Pan-STARRS survey at Haleakala Observatory, Hawaii, in the United States. The object measures approximately 1.8 km mi off 2 us in diameter. It holds the record for having the highest orbital inclination of any known minor planet. Orbit and classification 2013 LA 2 orbits the Sun at a distance of 3.0–12.0 AU once every 20 years and 7 months (7,519 days; semi-major axis of 7.51 AU). Its orbit has an eccentricity of 0.59 and an inclination of 175° with respect to the ecliptic. It has the highest orbital inclination of any known minor planet which gives it a retrograde orbit. The object's orbit takes it from the outer region of the asteroid belt to between the orbit of Saturn (9.5 AU) and Uranus (19.2 AU). The body's short observation arc of less than a month begins with its first observation on 1 June 2013. It has not since been observed. Physical characteristics Johnston's archive assumes an albedo 0.09 and calculates a diameter of 1.8 kilometers. See also List of notable asteroids Retrograde and highly inclined References 30em 2013-06-26 last obs. JPL Small-Body Database Browser: (2013 LA2) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=3639499 Jet Propulsion Laboratory 20 November 2018 2013 LA2 Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=2013+LA2 20 November 2018 List Of Other Unusual Objects Minor Planet Center 14 November 2018 https://www.minorplanetcenter.net/iau/lists/t_others.html 19 November 2018 List of Known Trans-Neptunian Objects Johnston's Archive 7 October 2018 Johnston Wm. Robert http://www.johnstonsarchive.net/astro/tnoslist.html 19 November 2018 External links 3639499 # Category:Damocloids # Category:Minor planet object articles (unnumbered) 20130601 Category:Minor planets with a retrograde orbit