小行星19308((19308) 1996 TO66)[3][4]是一個海王星外天體,1996年由乍德·特魯希略、大衛·朱維特,以及劉麗杏三名天文學家發現[5]。在小行星20000發現前,小行星19308是柯伊伯帶已發現天體中第二大的,直徑推測約200千米[6]或約529千米[7],但一定小於902千米[8]。小行星19308是妊神星族碰撞家族的一員,物理組成和妊神星相似,拒信起源於過去兩顆天體碰撞時噴出的地函[9]。 Quick Facts 發現, 發現者 ...(19308) 1996 TO66發現發現者乍德·特魯希略大衛·朱維特劉麗杏發現日期1996年10月12日編號小行星分類海王星外天體弱8階11:19共振天體[1]軌道參數 [2]不確定參數 3遠日點48.375 AU(7.2368 T米)近日點37.939 AU(5.6756 T米)離心率0.12090平近點角137.16°升交點黃經355.2889°近日點參數239.07°與地球最小軌道相交距離37.0117 AU(5.53687 T米)與木星最小軌道相交距離33.0091 AU(4.93809 T米)物理特徵自轉週期7.92 h(0.330 d)絕對星等(H)4.5 Close [1]D. Ragozzine; M. E. Brown. Candidate Members and Age Estimate of the Family of Kuiper Belt Object 2003 EL61. The Astronomical Journal. 2007-09-04, 134 (6): 2160–2167. Bibcode:2007AJ....134.2160R. arXiv:0709.0328 . doi:10.1086/522334. [2]JPL Small-Body Database Browser: 19308 (1996 TO66) (2003-10-18 last obs). [5 April 2016]. (原始內容存檔於2020-11-22). [3]Tegler, Stephen C. Kuiper Belt Object Magnitudes and Surface Colors. 2007-02-01 [2006-11-07]. (原始內容存檔於2006-09-01). [4]Snodgrass, Carry; Dumas, Hainaut. Characterisation of candidate members of (136108) Haumea's family. Astronomy and Astrophysics. 16 December 2009. Bibcode:2010A&A...511A..72S. arXiv:0912.3171 . doi:10.1051/0004-6361/200913031. [5]19308 (1996 TO66). NASA. [2019-01-12]. (原始內容存檔於2020-11-22). [6]Dan Bruton. Conversion of Absolute Magnitude to Diameter for Minor Planets. Department of Physics & Astronomy (Stephen F. Austin State University). [2009-12-27]. (原始內容存檔於23 March 2010). [7]International Astronomical Union. Symposium; Julio A. Fernandez. Icy Bodies of the Solar System (IAU S263). Cambridge University Press. 29 April 2010: 178 [2019-01-12]. ISBN 978-0-521-76488-9. (原始內容存檔於2019-03-04). [8]Grundy, W. M. Diverse albedos of small trans-neptunian objects. Icarus. 2004, 176: 22. Bibcode:2005Icar..176..184G. arXiv:astro-ph/0502229 . doi:10.1016/j.icarus.2005.01.007. [9] Pinilla-Alonso, N.; Licandro, J.; Gil-Hutton, R.; Brunetto, R. The water ice rich surface of (145453) 2005 RR43: a case for a carbon-depleted population of TNOs?. Astronomy and Astrophysics. June 2007, 468 (1): L25. Bibcode:2007A&A...468L..25P. arXiv:astro-ph/0703098 . doi:10.1051/0004-6361:20077294. First Rotation Period of a Kuiper Belt Object Measured (頁面存檔備份,存於網際網路檔案館) – ESO, 5 November 1998 NASA JPL小天體資料庫瀏覽器上的小行星19308