(613100) 2005 TN74

Astronomical object February 2018 yes #C2E0FF (613100) 2005 TN 74 Scott S. Sheppard, Chad Trujillo 8 October 2005 3:5 resonant TNO JPL Small-Body Database Browser: 2005 TN74 http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2005TN74 30 March 2016 13 January 2016 (JD 2457400.5) 42.30237 AU Tm on 32.11131 AU Tm on 52.49343 AU Tm on on 0.24091 275.14 yr (100495 d) 2.17385° 179.25692° 224.79728° 351.03607° 85–240 km 7.3 0.003582259 ms /day 1805 days (4.94 yr) 4 31.1197 AU Tm on 27.1241 AU Tm on (613100) 2005 TN 74 is a trans-Neptunian object (TNO)Most SDOs have a perihelion distance greater than 35 AU and an eccentricity of more than 0.3. in a 3:5 resonance with Neptune.http://www.boulder.swri.edu/~buie/kbo/astrom/05TN74.html Orbit Fit and Astrometric record for 05TN74 7 March 2012 29 April 2018 https://web.archive.org/web/20180429165723/http://www.boulder.swri.edu/~buie/kbo/astrom/05TN74.html dead 2006-10-05 MPEC 2006-T35 : 2005 PR21, 2005 PT21, 2005 PU21, 2005 TN74 Minor Planet Center Wasserman, L. H. Buie, M. W. Marsden, B. G. https://www.minorplanetcenter.net/mpec/K06/K06T35.html 2008-05-12 It was discovered by Scott S. Sheppard and Chadwick A. Trujillo in 2005. It was initially suspected of being a Neptune trojan since the first observations gave it a semi-major axis of 30 AU and an orbital eccentricity of 0.16,2005-10-31 MPEC 2005-U97 : 2005 TN74, 2005 TO74 Minor Planet Center Sheppard, S. S. Trujillo, C. A. Marsden, B. G. http://www.cfa.harvard.edu/mpec/K05/K05U97.html 2008-05-12 but further observations showed it to have a semi-major axis of 42.7 AU, a perihelion of 32.1 AU, and an aphelion of 53.4 AU. With an absolute magnitude of 7.2, it has an expected diameter in the range of 85 to 240 km.Absolute Magnitude (H) http://neo.jpl.nasa.gov/glossary/h.html https://web.archive.org/web/20010302182040/http://neo.jpl.nasa.gov/glossary/h.html dead 2001-03-02 2008-05-11 It has been observed 19 times over four oppositions. Notes References External links 3301617 613100 (613100) 2005 TN 74 613100 613100 613100 20051008