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{{DISPLAYTITLE:{{mp|2010 TJ|}}}} |
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{{Infobox planet |
{{Infobox planet |
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| minorplanet = yes |
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| width = 25em |
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| name = 2010 TJ |
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| bgcolour = #FFFFC0 |
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| background = #C2E0FF |
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| name = {{mp|2010 TJ|}} |
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| image = |
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| image_size = |
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| caption = |
| caption = |
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| discovery_ref = <ref name="jpldata" /><ref name="MPC-CEN-SDO-list" /> |
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| discovery = yes |
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| discoverer = [[David L. Rabinowitz|D. L. Rabinowitz]]<br />[[Megan Schwamb|M. E. Schwamb]]<br />[[Suzanne W. Tourtellotte|S. Tourtellotte]] |
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| discovery_ref = |
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| discovery_site = [[La Silla Observatory|La Silla Obs.]] |
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| discoverer = |
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| discovered = 2010 |
| discovered = 2 October 2010<br />{{small|(first observed only)}} |
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| mpc_name = 2010 TJ |
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| alt_names = |
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| mp_category = [[Trans-Neptunian object|TNO]] ([[Scattered disc|SDO]])<ref name=MPC>{{cite web |
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| pronounced = |
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|title=List Of Centaurs and Scattered-Disk Objects |
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| named_after = |
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|publisher=Minor Planet Center |
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| mp_category = [[Trans-Neptunian object|TNO]]<ref name="jpldata" />{{·}}[[Scattered disc|SDO]]<ref name="johnstonsarchive-TNO-list" /><br />[[Distant minor planet|distant]]<ref name="MPC-object" /> |
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|url=http://www.minorplanetcenter.org/iau/lists/Centaurs.html |
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| orbit_ref = <ref name="jpldata" /> |
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|accessdate=2012-08-31}}</ref> |
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| epoch = 4 September 2017 ([[Julian day|JD]] 2458000.5) |
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| orbit_ref = <ref name="jpldata">{{cite web |
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| uncertainty = 4 |
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|date=2011-12-25 last obs |
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| observation_arc = 7.22 yr (2,636 days) |
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|title=JPL Small-Body Database Browser: (2010 TJ) |
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| aphelion = 84.870 [[Astronomical unit|AU]] |
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|url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2010TJ |
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| perihelion = 39.894 AU |
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|accessdate=2012-08-31}}</ref> |
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| semimajor = 62.382 AU |
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| epoch = [[Julian day|JD]] 2456200.5 (September 30, 2012) |
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| eccentricity = 0.3605 |
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| aphelion = 87 [[Astronomical unit|AU]] |
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| period = 492.72 [[Julian year (astronomy)|yr]] (179,965 [[Day|d]]) |
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| perihelion = 40 AU |
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| mean_anomaly = 12.366[[Degree (angle)|°]] |
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| semimajor = 64 AU |
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| mean_motion = {{Deg2DMS|0.0020|sup=ms}} / day |
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| eccentricity = 0.375 |
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| inclination = 38.931° |
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| period = 507 [[Julian year (astronomy)|yr]] |
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| asc_node = 91.226° |
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| avg_speed = |
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| arg_peri = 273.70° |
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| inclination = 38.871[[degree (angle)|°]] |
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| satellites = |
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| asc_node = 91.40° |
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| mass = |
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| mean_anomaly = 9.4° |
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| mean_diameter = 443 km {{small|(estimated)}}<ref name="johnstonsarchive-TNO-list" /><br />471 km {{small|(assumed)}}<ref name="Brown-dplist" /> |
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| arg_peri = 271° |
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| |
| rotation = |
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| albedo = 0.07 {{small|(assumed)}}<ref name="Brown-dplist" /><br />0.09 {{small|(assumed)}}<ref name="johnstonsarchive-TNO-list" /> |
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| physical_characteristics = yes |
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| spectral_type = |
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| dimensions = 478 km (assumed)<ref name=Brown-dplist/> |
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| magnitude = |
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| abs_magnitude = 5.0<ref name="jpldata" />{{·}}5.3<ref name="Brown-dplist" /> |
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| density = |
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}} |
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| surface_grav = |
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| escape_velocity = |
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'''{{mp|2010 TJ}}''' is a [[trans-Neptunian object]] from the [[scattered disc]] in the outermost region of the [[Solar System]] and measures approximately 460 kilometers in diameter. It was first observed by American astronomers [[David Rabinowitz]], [[Megan Schwamb]], and [[Suzanne Tourtellotte]] at ESO's [[La Silla Observatory]] in northern Chile on 2 October 2010.<ref name="MPC-object" /> |
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| sidereal_day = |
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| axial_tilt = |
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== Orbit and classification == |
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| pole_ecliptic_lat = |
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| pole_ecliptic_lon = |
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{{mp|2010 TJ}} is a [[list of possible dwarf planets|probably a dwarf planet]], based on [[Michael E. Brown|Michael Brown]]'s classification.<ref name="Brown-dplist" /> Typical for [[scattered disc object]]s,<ref name="johnstonsarchive-TNO-list" /> it has an elliptical and inclined orbit: the object orbits the Sun at a distance of 39.9–84.9 [[Astronomical unit|AU]] once every 492 years and 9 months (179,965 days; [[semi-major axis]] of 62.4 AU). Its orbit has an [[orbital eccentricity|eccentricity]] of 0.36 and an [[orbital inclination|inclination]] of 39[[Degree (angle)|°]] with respect to the [[ecliptic]].<ref name="jpldata" /> The body's [[observation arc]] begins with its first observation at La Silla in October 2010.<ref name="MPC-object" /> |
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| albedo = 0.07 (assumed)<ref name=Brown-dplist/> |
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| spectral_type = |
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== Physical characteristics == |
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| magnitude = |
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{{mp|2010 TJ}}'s [[Trans-Neptunian object#Colours|color]] and [[Trans-Neptunian object#Spectra|taxonomic type]] have not yet been determined.<ref name="jpldata" /><ref name="johnstonsarchive-TNO-list" /> |
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| abs_magnitude = 5.2<ref name=jpldata/> |
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}} |
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=== Rotation period === |
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'''{{mp|2010 TJ|}}''' is a [[trans-Neptunian object]] orbiting the [[Sun]] in the [[scattered disc]]. It was discovered in 2010. With an [[absolute magnitude]] of 5.2,<ref name=jpldata/> it is probably a [[dwarf planet]].<ref name=Brown-dplist>{{cite web |
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As of 2018, no rotational [[lightcurve]] of {{mp|2010 TJ}} has been obtained from photometric observations. The object's [[rotation period]], shape and poles remain unknown.<ref name="lcdb" /> |
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|title=How many dwarf planets are there in the outer solar system? (updates daily) |
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|publisher=California Institute of Technology |
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=== Diameter and albedo === |
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|author=[[Michael E. Brown]] |
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According to the Johnston's Archive and Michael Brown, {{mp|2010 TJ}} measures 443 and 471 kilometers in diameter, and its surface has an assumed [[Astronomical albedo|albedo]] of 0.09 and 0.07, respectively.<ref name="johnstonsarchive-TNO-list" /><ref name="Brown-dplist" /> |
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|url=http://www.gps.caltech.edu/~mbrown/dps.html |
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|accessdate=2012-08-31}}</ref> |
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== Numbering and naming == |
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This [[minor planet]] has neither been [[List of unnumbered minor planets|numbered]] nor [[List of named minor planets (alphabetical)|named]].<ref name="MPC-object" /> |
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== References == |
== References == |
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{{reflist|refs= |
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{{Reflist}} |
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<ref name="jpldata">{{cite web |
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|type = 2017-12-20 last obs. |
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|title = JPL Small-Body Database Browser: (2010 TJ) |
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|url = https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=3547935 |
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|publisher = [[Jet Propulsion Laboratory]] |
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|access-date = 17 January 2018}}</ref> |
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<ref name="MPC-object">{{cite web |
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|title = 2010 TJ |
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|work = Minor Planet Center |
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|url = https://www.minorplanetcenter.net/db_search/show_object?object_id=2010+TJ |
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|access-date = 17 January 2018}}</ref> |
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<ref name="MPC-CEN-SDO-list">{{cite web |
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|title = List Of Centaurs and Scattered-Disk Objects |
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|work = Minor Planet Center |
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|url = https://www.minorplanetcenter.net/iau/lists/t_centaurs.html |
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|access-date = 17 January 2018}}</ref> |
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<ref name="Brown-dplist">{{cite web |
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|title = How many dwarf planets are there in the outer solar system? |
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|publisher = [[California Institute of Technology]] |
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|author = Michael E. Brown |
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|url = http://web.gps.caltech.edu/~mbrown/dps.html |
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|access-date = 17 January 2018}}</ref> |
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<ref name="johnstonsarchive-TNO-list">{{cite web |
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|title = List of Known Trans-Neptunian Objects |
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|work = Johnston's Archive |
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|date = 15 October 2017 |
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|author = Johnston, Wm. Robert |
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|url = http://www.johnstonsarchive.net/astro/tnoslist.html |
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|access-date = 17 January 2018}}</ref> |
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<ref name="lcdb">{{cite web |
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|title = LCDB Data for (2010 TJ) |
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|publisher = Asteroid Lightcurve Database (LCDB) |
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|url = http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=0%7C2010+TJ |
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|access-date = 17 January 2018}}</ref> |
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}} |
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<!-- end of reflist --> |
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== External links == |
== External links == |
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* [http://www.minorplanet.info/PHP/lcdbsummaryquery.php Asteroid Lightcurve Database (LCDB)], query form ([http://www.minorplanet.info/lightcurvedatabase.html info] {{Webarchive|url=https://web.archive.org/web/20171216050541/http://www.minorplanet.info/lightcurvedatabase.html |date=16 December 2017 }}) |
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* [http://www.minorplanetcenter.net/db_search/show_object?object_id=2010+TJ Minor Planet Center 2010 TJ] |
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* {{AstDys|2010TJ}} |
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* {{JPL small body|id=3547935}} |
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{{Dwarf planets}} |
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{{Trans-Neptunian objects}} |
{{Trans-Neptunian objects}} |
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<!--use upon numbering: {{Minor planets navigator | |number=? | }} --> |
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{{Trans-Neptunian dwarf planets}} |
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{{Small Solar System bodies}} |
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{{Authority control}} |
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{{DEFAULTSORT:2010 TJ}} |
{{DEFAULTSORT:2010 TJ}} |
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[[Category:Scattered disc and detached objects]] |
[[Category:Scattered disc and detached objects|#]] |
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[[Category: |
[[Category:Minor planet object articles (unnumbered)]] |
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[[Category: |
[[Category:Possible dwarf planets|#]] |
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[[Category:Astronomical objects discovered in 2010|20101002]] |
Discovery[1][2] | |
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Discovered by | D. L. Rabinowitz M. E. Schwamb S. Tourtellotte |
Discovery site | La Silla Obs. |
Discovery date | 2 October 2010 (first observed only) |
Designations | |
2010 TJ | |
TNO[1] · SDO[3] distant[4] | |
Orbital characteristics[1] | |
Epoch 4 September 2017 (JD 2458000.5) | |
Uncertainty parameter4 | |
Observation arc | 7.22 yr (2,636 days) |
Aphelion | 84.870 AU |
Perihelion | 39.894 AU |
62.382 AU | |
Eccentricity | 0.3605 |
492.72 yr (179,965 d) | |
12.366° | |
0° 0m 7.2s / day | |
Inclination | 38.931° |
91.226° | |
273.70° | |
Physical characteristics | |
443 km (estimated)[3] 471 km (assumed)[5] | |
0.07 (assumed)[5] 0.09 (assumed)[3] | |
5.0[1] · 5.3[5] | |
2010 TJ is a trans-Neptunian object from the scattered disc in the outermost region of the Solar System and measures approximately 460 kilometers in diameter. It was first observed by American astronomers David Rabinowitz, Megan Schwamb, and Suzanne Tourtellotte at ESO's La Silla Observatory in northern Chile on 2 October 2010.[4]
2010 TJ is a probably a dwarf planet, based on Michael Brown's classification.[5] Typical for scattered disc objects,[3] it has an elliptical and inclined orbit: the object orbits the Sun at a distance of 39.9–84.9 AU once every 492 years and 9 months (179,965 days; semi-major axis of 62.4 AU). Its orbit has an eccentricity of 0.36 and an inclination of 39° with respect to the ecliptic.[1] The body's observation arc begins with its first observation at La Silla in October 2010.[4]
2010 TJ's color and taxonomic type have not yet been determined.[1][3]
As of 2018, no rotational lightcurveof2010 TJ has been obtained from photometric observations. The object's rotation period, shape and poles remain unknown.[6]
According to the Johnston's Archive and Michael Brown, 2010 TJ measures 443 and 471 kilometers in diameter, and its surface has an assumed albedo of 0.09 and 0.07, respectively.[3][5]
This minor planet has neither been numbered nor named.[4]
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TNO classes |
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Dwarf planets (moons) |
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Sednoids |
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