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{{Infobox planet |
{{Infobox planet |
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| minorplanet = yes |
| minorplanet = yes |
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| image_size = |
| image_size = |
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| caption = |
| caption = |
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| discovery_ref = |
| discovery_ref = <ref name="jpldata" /><ref name="MPC-CEN-SDO-list" /> |
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| discoverer = [[David L. Rabinowitz|D. L. Rabinowitz]]<br />[[Megan Schwamb|M. E. Schwamb]]<br />[[Suzanne W. Tourtellotte|S. Tourtellotte]] |
| discoverer = [[David L. Rabinowitz|D. L. Rabinowitz]]<br />[[Megan Schwamb|M. E. Schwamb]]<br />[[Suzanne W. Tourtellotte|S. Tourtellotte]] |
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| discovery_site = [[La Silla Observatory|La Silla Obs.]] |
| discovery_site = [[La Silla Observatory|La Silla Obs.]] |
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| pronounced = |
| pronounced = |
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| named_after = |
| named_after = |
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| mp_category = [[Trans-Neptunian object|TNO]] |
| 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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| orbit_ref = |
| orbit_ref = <ref name="jpldata" /> |
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| epoch = 4 September 2017 ([[Julian day|JD]] 2458000.5) |
| epoch = 4 September 2017 ([[Julian day|JD]] 2458000.5) |
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| uncertainty = 4 |
| uncertainty = 4 |
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== Physical characteristics == |
== Physical characteristics == |
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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" /> |
{{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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=== Rotation period === |
=== Rotation period === |
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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" /> |
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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=== Diameter and albedo === |
=== Diameter and albedo === |
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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" /> |
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 = https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=3547935 |
|url = https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=3547935 |
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|publisher = [[Jet Propulsion Laboratory]] |
|publisher = [[Jet Propulsion Laboratory]] |
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| |
|access-date = 17 January 2018}}</ref> |
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<ref name="MPC-object">{{cite web |
<ref name="MPC-object">{{cite web |
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|work = Minor Planet Center |
|work = Minor Planet Center |
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|url = https://www.minorplanetcenter.net/db_search/show_object?object_id=2010+TJ |
|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 |
<ref name="MPC-CEN-SDO-list">{{cite web |
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|work = Minor Planet Center |
|work = Minor Planet Center |
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|url = https://www.minorplanetcenter.net/iau/lists/t_centaurs.html |
|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 |
<ref name="Brown-dplist">{{cite web |
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|author = Michael E. Brown |
|author = Michael E. Brown |
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|url = http://web.gps.caltech.edu/~mbrown/dps.html |
|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 |
<ref name="johnstonsarchive-TNO-list">{{cite web |
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|author = Johnston, Wm. Robert |
|author = Johnston, Wm. Robert |
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|url = http://www.johnstonsarchive.net/astro/tnoslist.html |
|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 |
<ref name="lcdb">{{cite web |
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|title = LCDB Data for (2010 TJ) |
|title = LCDB Data for (2010 TJ) |
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|publisher = Asteroid Lightcurve Database (LCDB) |
|publisher = Asteroid Lightcurve Database (LCDB) |
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|url = http://www.minorplanet.info/PHP/ |
|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]) |
* [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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* {{AstDys|2010TJ}} |
* {{AstDys|2010TJ}} |
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* {{JPL small body|id=3547935}} |
* {{JPL small body|id=3547935}} |
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{{Dwarf planets}} |
{{Dwarf planets}} |
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{{Trans-Neptunian objects}} |
{{Trans-Neptunian objects}} |
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<!--use upon numbering: {{Minor planets navigator | |number=? | }} --> |
<!--use upon numbering: {{Minor planets navigator | |number=? | }} --> |
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{{Small Solar System bodies}} |
{{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:Possible dwarf planets|#]] |
[[Category:Possible dwarf planets|#]] |
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[[Category:Astronomical objects discovered in 2010|20101002]] |
[[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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