(19308) 1996 TO66

Trans-Neptunian object in the Kuiper belt April 2020 yes #C2E0FF 19308-1996to66 hst.jpg Hubble Space Telescope image of 1996 TO 66 taken in 2005 (19308) 1996 TO 66 Chadwick Trujillo David Jewitt Jane Luu 12 October 1996 (19308) 1996 TO 66 Haumea family TNO intermittent 11:19 resonance? 13 January 2016 (JD 2457400.5) 43.157 AU Tm on 37.939 AU Tm on 48.375 AU Tm on on 0.12090 283.52 yr (103,555 d) 27.4948° 355.2889° 239.07° 137.16° 200 km (assuming a Haumea-like albedo of 0.7) (<902km) 7.92 h Neutral B−V 0.68, V−R 0.39 B−V 0.74, V−R 0.38 4.80 0.7 (assumed) ~43 K 0.0034764 ms / day 7.92 h d on on 7322 days (20.05 yr) 3 37.0117 AU Tm on 33.0091 AU Tm on (19308) 1996 TO 66 is a trans-Neptunian object that was discovered in 1996 by Chadwick Trujillo, David Jewitt and Jane Luu. Until 20000 Varuna was discovered, it was the second-brightest known object in the Kuiper belt, after Pluto. In September 1998, 1996 TO 66 was measured and was found to likely contain water ice, as well as another black/bluish material.Brown R. H. Cruikshank D. P. Pendleton Y. Water Ice on Kuiper Belt Object 1996 TO66 NASA Technical Reports Server (NTRS) 2013-09-07 https://ntrs.nasa.gov/citations/20000084162 2026-09-02 Origin Haumea family thumb|left|1996 TO 66 (center top) imaged by the NTT at La Silla in 1998. Other objects are elongated due to the 4-hour-exposure. The horizontal streak is from a geostationary satellite. Based on their common pattern of IR water-ice absorptions, neutral visible spectrum and the clustering of their orbital elements, the other KBOs (24835) 1995 SM 55, (55636) 2002 TX 300, (120178) 2003 OP 32 and (145453) 2005 RR 43 all appear to be collisional fragments broken off of the dwarf planet Haumea. left Orbit The eccentricity of 1996 TO 66 varies between ca. 0.110 and 0.125 every 2 million years, with additional variations on the order of ± 0.01 on much shorter time scales. It is in an intermittent 19:11 resonance with Neptune. The resonance breaks every 2 million years when the eccentricity is highest and the orbit is closest to Neptune. References Candidate Members and Age Estimate of the Family of Kuiper Belt Object 2003 EL 61 D. Ragozzine M. E. Brown The Astronomical Journal 134 6 2160–2167 2007-09-04 2007AJ....134.2160R 10.1086/522334 0709.0328 8387493 2003-10-18 last obs JPL Small-Body Database Browser: 19308 (1996 TO66) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=1996TO66 5 April 2016 Conversion of Absolute Magnitude to Diameter for Minor Planets Department of Physics & Astronomy (Stephen F. Austin State University) Dan Bruton http://www.physics.sfasu.edu/astro/asteroids/sizemagnitude.html 2009-12-27 https://web.archive.org/web/20100323180835/http://www.physics.sfasu.edu/astro/asteroids/sizemagnitude.html 23 March 2010 astro-ph/0502229 Diverse albedos of small trans-neptunian objects Grundy W. M. 2004 Icarus 176 1 184–191 2005Icar..176..184G 10.1016/j.icarus.2005.01.007 118866288 Snodgrass, Carry Dumas, Hainaut Characterisation of candidate members of (136108) Haumea's family 10.1051/0004-6361/200913031 Astronomy and Astrophysics 16 December 2009 511 A72 0912.3171 2010A&A...511A..72S http://www.physics.nau.edu/~tegler/research/survey.htm https://archive.today/20060901063349/http://www.physics.nau.edu/~tegler/research/survey.htm dead 2006-09-01 Kuiper Belt Object Magnitudes and Surface Colors 2006-11-07 Tegler Stephen C. 2007-02-01 The water ice rich surface of (145453) 2005 RR43: a case for a carbon-depleted population of TNOs? Pinilla-Alonso, N. Licandro, J. Gil-Hutton, R. Brunetto, R. Astronomy and Astrophysics June 2007 468 1 2007A&A...468L..25P 10.1051/0004-6361:20077294 L25 astro-ph/0703098 18546361 External links First Rotation Period of a Kuiper Belt Object Measured ESO, 5 November 1998 19308 19308 (19308) 1996 TO 66 Category:Haumea family Category:Classical Kuiper belt objects 1996 TO66 1996 TO66 1996 TO66 19961012