(469987) 2006 HJ123

Trans-Neptunian object (TNO) January 2019 yes #C2E0FF (469987) 2006 HJ 123 Marc W. Buie 27 April 2006 http://www.minorplanetcenter.org/iau/lists/TNOs.html List Of Transneptunian Objects 14 May 2012 IAU Minor Planet Center TNO (plutino)2006-06-11 MPEC 2006-L50 : 2006 HF123, 2006 HG123, 2006 HH123, 2006 HJ123 Brian G. Marsden IAU Minor Planet Center Harvard-Smithsonian Center for Astrophysics https://www.minorplanetcenter.net/iau/mpec/K06/K06L50.html 2012-05-14 13 January 2016 (JD 2457400.5) 39.535 AU Tm on 27.626 AU Tm on ≈ 26 April 2051JPL Horizons Observer Location: @sun (Perihelion occurs when deldot changes from negative to positive. Uncertainty in time of perihelion is 3-sigma.)±1 days 51.444 AU Tm on on 0.30123 248.59 yr (90798.1 d) 12.433° 222.53° 101.59° 309.05° 2012-05-14 last obs JPL Small-Body Database Browser: (2006 HJ123) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=3335755 30 March 2016 283.1142.3 110.8 km 5.32 ± 0.66, 0.1360.308 0.089 ~44 K 0.0039648 ms /day 1838 days (5.03 yr) 3 26.636 AU Tm on 22.7401 AU Tm on (469987) 2006 HJ 123 is a trans-Neptunian object (TNO). It was discovered in 2006 by Marc W. Buie. The object is a plutino (in 2:3 resonance with Neptune). The size of 2006 HJ 123 was measured by the Herschel Space Telescope to be 283142 111 km. Mommert Michael Harris A. W. Kiss C. Pál A. Santos-Sanz P. Stansberry J. Delsanti A. Vilenius E. Müller T. G. N. Peixinho E. Lellouch N. Szalai F. Henry R. Duffard S. Fornasier P. Hartogh M. Mueller J. L. Ortiz S. Protopapa M. Rengel A. Thirouin TNOs are cool: A survey of the trans-Neptunian region—V. Physical characterization of 18 Plutinos using Herschel-PACS observations 10.1051/0004-6361/201118562 Astronomy & Astrophysics 541 A93 May 2012 2012A&A...541A..93M 1202.3657 References External links 469987 469987 469987 Category:Discoveries by Marc Buie 20060427