2000 DG8

Minor planet February 2018 yes 2000 DG 8 #C7FF8F LINEAR Lincoln Lab ETS 25 February 2000(first observed only) 2000 DG 8 centaurdamocloidunusualdistant 21 November 2025 (JD 2461000.5) 4 342 days 19.290 AU 2.2374 AU 10.764 AU 0.7921 35.31 yr (12,898 d) 253.61° 0.0279 ms / day 129.47° 279.34° 222.27° -0.633 15.6 2.6 km17.28 km11 0.027110.053 0.017 13.1 2000 DG 8 is a dark centaur and damocloid on a retrograde and highly eccentric orbit from the outer region of the Solar System. It was first observed on 25 February 2000, by astronomers with the LINEAR program at the Lincoln Lab's ETS near Socorro, New Mexico, United States. It has not been observed since 2001. The unusual object measures approximately 16 km mi off 2 us in diameter. Discovery 2000 DG 8 was first observed on 25 February 2000, by astronomers of the Lincoln Near-Earth Asteroid Research (LINEAR) at the Lincoln Laboratory's Experimental Test Site near Socorro, New Mexico, United States. Orbit and classification 2000 DG 8 is a member of the dynamically unstable centaur and damocloid population. Given the body's dark surface and its cometary-like orbit, it may be a dormant comet.February 2018 It orbits the Sun at a distance of 2.2–19.3 AU once every 35 years and 4 months (12,893 days; semi-major axis of 10.76 AU). Its orbit has a high eccentricity of 0.79 and an inclination of 129° with respect to the ecliptic. With an inclination above 90°, It is one of about 100 known minor planets with a retrograde orbit around the Sun. The object also has a negative Tisserand's parameter. The body's observation arc begins with its first observation at Socorro in February 2000. It was last observed in 2001 when it came to perihelion (closest approach to the Sun), and will next come to perihelion in April 2036. It was the third distant object with a retrograde orbit to be discovered, 8 months beaten by 20461 Dioretsa and (612093) 1999 LE 31. Physical characteristics According to radiometric observations published in 2001 and 2005, 2000 DG 8 measures approximately 15.6 2.6 and 17.28 kilometers in diameter, with a corresponding albedo 0.053 and 0.027, respectively. As of 2018, no rotational lightcurve of this object has been obtained from photometric observations. The object's rotation period, pole and shape remain unknown. Numbering and naming This minor planet has not been numbered by the Minor Planet Center and remains unnamed. See also (612093) 1999 LE 31 2005 VX 3 References 30em 2001-02-01 last obs. JPL Small-Body Database Browser: (2000 DG8) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=3035904 Jet Propulsion Laboratory 20 November 2018 2000 DG8 Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=2000+DG8 20 November 2018 List Of Other Unusual Objects Minor Planet Center 14 November 2018 https://www.minorplanetcenter.net/iau/lists/t_others.html 20 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 JPL Small-Body Database Search Engine: Asteroids and i > 90 (deg) JPL Solar System Dynamics http://ssd.jpl.nasa.gov/sbdb_query.cgi?obj_group=all;obj_kind=ast;obj_numbered=all;OBJ_field=0;ORB_field=0;c1_group=ORB;c1_item=Bj;c1_op=%3E;c1_value=90;table_format=HTML;max_rows=200;format_option=comp;c_fields=AcBhBgBjBiBnBsCjCpAi;.cgifields=format_option;.cgifields=obj_kind;.cgifields=obj_group;.cgifields=obj_numbered;.cgifields=ast_orbit_class;.cgifields=table_format;.cgifields=com_orbit_class&query=1&c_sort=AcA 2014-11-15 Yanga R. Fernández David C. Jewitt Scott S. Sheppard June 2001 Low Albedos Among Extinct Comet Candidates The Astrophysical Journal 553 2 L197–L200 2001ApJ...553L.197F 10.1086/320689 astro-ph/0104478 55912038 External links 2000 DG8 at MISAO, Seiichi Yoshida 3035904 Category:Damocloids # # Category:Minor planet object articles (unnumbered) * 20000225 Category:Minor planets with a retrograde orbit