(82075) 2000 YW134

Trans-Neptunian binary September 2021 yes (82075) 2000 YW 134 #C2E0FF 2000 YW134 Hubble.png 2000 YW 134 and its satellite (upper right) imaged by the Hubble Space Telescope on 25 October 2002 Spacewatch Kitt Peak National Obs. 26 December 2000 (82075) 2000 YW 134 2001 XG 201 TNOres (3:8) 1 July 2021 (JD 2459396.5) 2 20.19 yr (7,373 d) 73.783 AU 40.999 AU 57.391 AU 0.2856 434.78 yr (158,805 d) 35.927° 0.0023 ms / day 19.866° 127.00° 314.98° 1 (Ds/Dp: 0.347) 229 km (effective) 216 km (primary) 75 km (secondary) 0.08 >0.408 0.329 IR (reddish) B−V 0.93; V–R 0.50 21.54 4.72 (82075) 2000 YW 134 is a resonant trans-Neptunian object and binary system, located in the outermost region of the Solar System. It was discovered on 26 December 2000, by astronomers with the Spacewatch survey at Kitt Peak Observatory near Tucson, Arizona. The reddish object stays in a rare 3:8 resonance with Neptune. A smaller companion was discovered by the Hubble Space Telescope in October 2002. Orbit and classification 2000 YW 134 orbits the Sun at a distance of 41.0–73.8 AU once every 434 years and 9 months (158,805 days; semi-major axis of 57.39 AU). Its orbit has an eccentricity of 0.29 and an inclination of 20° with respect to the ecliptic. The body's observation arc begins with its official discovery observation by Spacewatch on 26 December 2000. It last came to perihelion in 1979, and is currently at about 46.5 AU from the Sun, with an apparent magnitude of 21.54. It will reach aphelion in December 2197. 2000 YW 134 is a resonant trans-Neptunian object that stays in a rare 3:8 mean-motion orbital resonance with Neptune, orbiting exactly three times the Sun for every 8 orbits Neptune does. There are currently two other objects known to have the same resonant type: 2014 UE 228 and (542258) 2013 AP 183. Due to its relatively large distance to Neptune, a classification as an extended-scattered or detached object was also considered earlier on (Lykawka, 2006). However, improved observations and long-term numerical integrations of the object's orbit by Emelʹyanenko and Kiseleva (84% probability) and the Deep Ecliptic Survey – with all alternative integrations in agreement, showing a minimum perihelion distance of 38.2 AU – have since secured its 3:8 orbital resonance with Neptune. Numbering and naming This minor planet was numbered by the Minor Planet Center on 4 May 2004, receiving the number 82075 82075 in the minor planet catalog (M.P.C. 51853). 2025, it has not been named. According to the established naming conventions, it will be given a mythological name. Physical characteristics The surface of 2000 YW 134 is moderately red in the visible part of the spectrum. Its IR spectral type transitions from the very red (RR) to the intermediate blue-red (BR). Alternatively a BR-spectral type has also been assumed. The object's B−V and V–R color indices have also been measured several times, giving an averaged value of close to 1.0 and 0.5, respectively, for a combined B−R magnitude of 1.50. Diameter and albedo In 2010, observations with the Herschel Space Observatory constrained the object's geometric albedo to no darker than 8%, and allowed to place an upper limit on its effective mean diameter of 500 km mi on 2, as no thermal radiation had been detected. However, according to 12893 Michael Mommert's dissertation in 2013, the object has a much higher albedo of 0.408 0.329, which greatly reduces its effective diameter to 229 km mi on 2. Satellite On 25 October 2002, observations in the far-infrared with the NICMOS instrument of the Hubble Space Telescope revealed that 2000 YW 134 is a binary system. The discovery was announced on 6 October 2005.22 Johnston's Archive derives a diameter of 216 km mi on 2 for the primary and a diameter of 75 km mi on 2 for the secondary, based on a secondary-to-primary diameter ratio of 0.347, for a difference of 1.3 magnitudes between the two objects. The satellite orbits its primary every 10 days (estimated) at an average distance of 1900 km mi on 2. References 30em 2021-03-04 last obs. JPL Small-Body Database Browser: 82075 (2000 YW134) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2082075 Jet Propulsion Laboratory 9 September 2021 82075 (2000 YW134) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=82075 9 September 2021 MPC/MPO/MPS Archive Minor Planet Center https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html 9 September 2021 MPEC 2001-B03 : 2000 YW134 Minor Planet Electronic Circular Minor Planet Center 16 January 2001 https://minorplanetcenter.net//mpec/K01/K01B03.html 9 September 2021 MPEC 2002-A26 : 2000 YW134 2001 XG201 Minor Planet Electronic Circular Minor Planet Center 7 January 2002 https://minorplanetcenter.net//mpec/K02/K02A26.html 9 September 2021 Naming of Astronomical Objects – Minor planets IAU – International Astronomical Union https://www.iau.org/public/themes/naming/#minorplanets 27 July 2021 31 October 2013 https://web.archive.org/web/20131031154417/https://www.iau.org/public/themes/naming/#minorplanets dead 82075 9 September 2021 Orbit Fit and Astrometric record for 82075 Southwest Research Institute http://www.boulder.swri.edu/~buie/kbo/astrom/82075.html 9 September 2021 The Deep Ecliptic Survey Object Classifications Southwest Research Institute https://www.boulder.swri.edu/~buie/kbo/desclass.html 9 September 2021 Asteroids with Satellites Database – (82075) 2000 YW134 Johnston's Archive 20 September 2014 Johnston Wm. Robert http://www.johnstonsarchive.net/astro/astmoons/am-82075.html 9 September 2021 Mommert, M., 2013, p.164 and Grundy, 2012 List of Known Trans-Neptunian Objects Johnston's Archive 18 August 2020 http://www.johnstonsarchive.net/astro/tnoslist.html 9 September 2021 Asteroid (82075) 2000 YW134 – Ephemerides AstDyS-2, Asteroids – Dynamic Site https://newton.spacedys.com/astdys/index.php?pc=1.1.3.0&n=82075 9 September 2021 6 Müller T. G. Lellouch E. Stansberry J. Kiss C. Santos-Sanz P. Vilenius E. Protopapa S. Moreno R. Mueller M. Delsanti A. Duffard R. Fornasier S. Groussin O. Harris A. W. Henry F. Horner J. Lacerda P. Lim T. Mommert M. Ortiz J. L. Rengel M. Thirouin A. Trilling D. Barucci A. Crovisier J. Doressoundiram A. Dotto E. Gutiérrez P. J. Hainaut O. R. Hartogh P. Hestroffer D. Kidger M. Lara L. Swinyard B. Thomas N. July 2010 TNOs are Cool: A survey of the trans-Neptunian region. I. Results from the Herschel science demonstration phase (SDP) Astronomy and Astrophysics 518 L146 2010A&A...518L.146M 0004-6361 10.1051/0004-6361/201014683 free 118635387 1005.2923 Emelʹyanenko V. V. Kiseleva E. L. April 2008 Resonant motion of trans-Neptunian objects in high-eccentricity orbits Astronomy Letters 34 4 271–279 2008AstL...34..271E 0320-0108 122634598 10.1134/S1063773708040075 Stephens Denise C. Noll Keith S. February 2006 Detection of Six Trans-Neptunian Binaries with NICMOS: A High Fraction of Binaries in the Cold Classical Disk The Astronomical Journal 131 2 1142–1148 2006AJ....131.1142S 0004-6256 10.1086/498715 astro-ph/0510130 18812367 Belskaya Irina N. Barucci Maria A. Fulchignoni Marcello Dovgopol Anatolij N. April 2015 Updated taxonomy of trans-neptunian objects and centaurs: Influence of albedo Icarus 250 482–491 2015Icar..250..482B 0019-1035 10.1016/j.icarus.2014.12.004 http://ssd.jpl.nasa.gov/horizons.cgi?find_body=1&body_group=sb&sstr=82075 Horizon Online Ephemeris System California Institute of Technology, Jet Propulsion Laboratory 8 September 2021 External links Summary data for (82075), Small Bodies Data Ferret Asteroids with Satellites, Robert Johnston, johnstonsarchive.net Kuiper Belt Object Magnitudes and Surface Colors, Stephen C. Tegler (archived) List of Transneptunian Objects, Minor Planet Center 82075 82075 (82075) 2000 YW 134 082075 082075 082075 20001226