(300163) 2006 VW139: Difference between revisions

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{{Short description|Asteroid in the asteroid belt}}
⚫
{{Use dmy dates|date=September 2017}}
{{DISPLAYTITLE:{{mp|(300163) 2006 VW|139}}}}
{{DISPLAYTITLE:{{mp|(300163) 2006 VW|139}}}}
{{Infobox planet
{{Infobox planet
| minorplanet = yes
| minorplanet = yes
| name = {{mp|(300163) 2006 VW|139}}
| name = {{mp|(300163) 2006 VW|139}}<br />288P/{{mp|2006 VW|139}}
| background = #D6D6D6
| background = #D6D6D6
| image = 2006VW139.gif
| image = 2006VW139.gif
| image_size = 260
| image_scale =
| caption = Time-lapse video of {{mp|2006 VW|139}}
| caption = Time-lapse video of {{mp|2006 VW|139}}
| discovery_ref = &thinsp;<ref name="jpldata" /><ref name="MPC-object" />
| discovery_ref = <ref name="jpldata" /><ref name="MPC-object" />
| discoverer = [[Spacewatch]]
| discoverer = [[Spacewatch]]
| discovery_site = [[Kitt Peak National Observatory|Kitt Peak National Obs.]]
| discovery_site = [[Kitt Peak National Observatory|Kitt Peak National Obs.]]
| discovered = 15 November 2006
| discovered = 15 November 2006
| mpc_name = (300163) {{mp|2006 VW|139}}
| mpc_name = (300163) {{mp|2006 VW|139}}
| alt_names = {{mp|2006 VW|139}}{{·}}288P&thinsp;<ref name="jpldata" /><br />{{mp|P/2006 VW|139}}<ref name="Hsieh-2012" />
| alt_names = {{mp|2006 VW|139}}{{·}}288P<ref name="jpldata" /><br />{{mp|P/2006 VW|139}}<ref name="Hsieh-2012" />
| pronounced =
| pronounced =
| named_after = <!--[[xyx-wikiarticle]]<br />{{small|(description)}}-->
| named_after = <!--[[xyx-wikiarticle]]<br />{{small|(description)}}-->
| mp_category = [[main-belt]]&thinsp;<ref name="jpldata" /><ref name="MPC-object" />{{·}}{{small|([[Kirkwood gap|outer]])}}&thinsp;<ref name="lcdb" /><br />[[main-belt comet]]&thinsp;<ref name="Hsieh-2012" /><ref name="Agarwal-2017" />
| mp_category = [[main-belt]]<ref name="jpldata" /><ref name="MPC-object" />{{·}}{{small|([[Kirkwood gap|outer]])}}<ref name="lcdb" /><br />[[main-belt comet]]<ref name="Hsieh-2012" /><ref name="Agarwal-2017" />
| orbit_ref = &thinsp;<ref name="jpldata" />
| orbit_ref = <ref name="jpldata" />
| epoch = 4 September 2017 ([[Julian day|JD]] 2458000.5)
| epoch = 4 September 2017 ([[Julian day|JD]] 2458000.5)
| uncertainty = 0
| uncertainty = 0
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| asc_node = 83.187°
| asc_node = 83.187°
| arg_peri = 281.00°
| arg_peri = 281.00°
| satellites = 1&thinsp;<ref name="Agarwal-2017" /><ref name="johnstonsarchive" />
| satellites = 1<ref name="Agarwal-2017" /><ref name="johnstonsarchive" />
| dimensions = {{val|1.8|0.2}} km {{small|(derived)}}<ref name="johnstonsarchive" /><br />3.20 km {{small|(calculated)}}<ref name="lcdb" />
| dimensions = {{val|1.8|0.2}} km {{small|(derived)}}<ref name="johnstonsarchive" /><br />3.20 km {{small|(calculated)}}<ref name="lcdb" />
| mass = {{val|6.15|4.85|e=12|u=kg}}<ref name="johnstonsarchive" />{{efn|name=mass-note}}
| mass = {{val|6.15|4.85|e=12|u=kg}}<ref name="johnstonsarchive" />{{efn|name=mass-note}}
| rotation = {{convert|3240|h|d}}<ref name="lcdb" />
| rotation =
| albedo = 0.057 {{small|(assumed)}}<ref name="lcdb" />
| albedo = 0.057 {{small|(assumed)}}<ref name="lcdb" />
| spectral_type = [[C-type asteroid|C]] {{small|(assumed)}}<ref name="lcdb" />
| spectral_type = [[C-type asteroid|C]] {{small|(assumed)}}<ref name="lcdb" />
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}}
}}


⚫
'''{{mp|(300163) 2006 VW|139}}''' ([[provisional designation]] '''{{mp|2006 VW|139}}''', [[List of numbered comets|periodic comet designation]] '''{{mp|288P/2006 VW|139}}''') is a [[binary asteroid|binary]] [[active asteroid]] and [[main-belt comet]] from the outer regions of the [[asteroid belt]]. The object was discovered by [[Spacewatch]] in 2006. Its binary nature was confirmed by the [[Hubble Space Telescope]] in September 2016.<ref name="Agarwal-2017" /> Both primary and its [[minor-planet moon]] are similar in mass and size, making it a true binary system.<ref name="Agarwal-2017" /> The components are estimated to measure 1.8 kilometers in diameter, orbiting each other at a wide separation of 104 kilometers every 135 days.<ref name="lcdb" /><ref name="johnstonsarchive" /><ref name="NASA-news-hubble" />
'''{{mp|(300163) 2006 VW|139}}''', provisional designations {{mp|2006 VW|139}} and {{mp|P/2006 VW|139}}, as well as periodic cometary number {{mp|[[List of numbered comets#288P|288P]]}}, is a kilometer-sized [[asteroid]] from the outer regions of the [[asteroid belt]] and the first "binary main-belt comet" ever discovered.

⚫
{{mp|2006 VW|139}} belongs to the exclusive class of [[main-belt comet]]s, which display properties of both [[comet]]s and asteroids. It is also a synchronous [[Binary asteroid|binary system]] and potentially the [[List of slow rotators (minor planets)#Potentially slow rotators|slowest rotator]] known to exist. The object was discovered by [[Spacewatch]] in 2006. Its binary nature was confirmed by the [[Hubble Space Telescope]] in September 2016.<ref name="Agarwal-2017" /> Both primary and its [[minor-planet moon]] are similar in mass and size, making it a true binary system.<ref name="Agarwal-2017" /> The components are estimated to measure 1.8 kilometers in diameter, orbiting each other at a wide separation of 104 kilometers every 135 days.<ref name="lcdb" /><ref name="johnstonsarchive" /><ref name="NASA-news-hubble" />

It is also one of the [[List of slow rotators (minor planets)|slowest rotators]].


== Discovery ==
== Discovery ==
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== Physical characteristics ==
== Physical characteristics ==


=== Diameter albedo and mass ===
=== Diameter, albedo, and mass ===


{{mp|2006 VW|139}} has a derived diameter of {{val|1.8|0.2}} kilometer.<ref name="johnstonsarchive" /> The ''Collaborative Asteroid Lightcurve Link'' assumes an albedo of 0.057 and calculates a diameter of 3.20 kilometers based on an [[absolute magnitude]] of 16.2.<ref name="lcdb" /> The binary system has an estimated mass between {{val|1.3|e=12|ul=kg}} and {{val|1.1|e=13|u=kg}}.<ref name="Agarwal-2017" /> A single component has a derived mass of {{val|6.15|4.85|e=12|u=kg}}.<ref name="johnstonsarchive" />
{{mp|2006 VW|139}} has a derived diameter of {{val|1.8|0.2}} kilometer.<ref name="johnstonsarchive" /> The ''Collaborative Asteroid Lightcurve Link'' assumes an albedo of 0.057 and calculates a diameter of 3.20 kilometers based on an [[absolute magnitude]] of 16.2.<ref name="lcdb" /> The binary system has an estimated mass between {{val|1.3|e=12|ul=kg}} and {{val|1.1|e=13|u=kg}}.<ref name="Agarwal-2017" /> A single component has a derived mass of {{val|6.15|4.85|e=12|u=kg}}.<ref name="johnstonsarchive" />
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* [http://hubblesite.org/news_release/news/2017-32 Comet or Asteroid? Hubble Discovers that a Unique Object is a Binary], Hubblesite, September 2017
* [http://hubblesite.org/news_release/news/2017-32 Comet or Asteroid? Hubble Discovers that a Unique Object is a Binary], Hubblesite, September 2017
* [http://www.johnstonsarchive.net/astro/asteroidmoons.html Asteroids with Satellites], Robert Johnston, johnstonsarchive.net
* [http://www.johnstonsarchive.net/astro/asteroidmoons.html Asteroids with Satellites], Robert Johnston, johnstonsarchive.net
* [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 }})
* [https://books.google.com/books?id=aeAg1X7afOoC&pg Dictionary of Minor Planet Names], Google books
* [https://books.google.com/books?id=aeAg1X7afOoC&pg Dictionary of Minor Planet Names], Google books
* [http://obswww.unige.ch/~behrend/page_cou.html Asteroids and comets rotation curves, CdR] – Observatoire de Genève, Raoul Behrend
* [http://obswww.unige.ch/~behrend/page_cou.html Asteroids and comets rotation curves, CdR] – Observatoire de Genève, Raoul Behrend
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* {{JPL small body}}
* {{JPL small body}}


⚫
{{Use dmy dates|date=September 2017}}
{{Minor planets navigator | |number=300163 |PageName={{mp|(300163) 2006 VW|139}} | }}
{{Minor planets navigator | |number=300163 |PageName={{mp|(300163) 2006 VW|139}} | }}
{{Small Solar System bodies}}
{{Small Solar System bodies}}
{{2017 in space}}
{{Authority control}}


{{DEFAULTSORT:2006 VW139}}
{{DEFAULTSORT:2006 VW139}}
[[Category:Active asteroids|300163]]
[[Category:Active asteroids|300163]]
[[Category:Numbered comets|0288]]
[[Category:Discoveries by the Spacewatch project|300163]]
[[Category:Discoveries by the Spacewatch project|300163]]
[[Category:Binary asteroids|300163]]
[[Category:Binary asteroids|300163]]

Latest revision as of 19:19, 1 March 2024

(300163) 2006 VW139
288P/2006 VW139
Time-lapse video of 2006 VW139
Discovery[1][2]
Discovered bySpacewatch
Discovery siteKitt Peak National Obs.
Discovery date15 November 2006
Designations
(300163) 2006 VW139
2006 VW139 · 288P[1]
P/2006 VW139[3]
main-belt[1][2] · (outer)[4]
main-belt comet[3][5]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc16.31 yr (5,958 days)
Aphelion3.6619 AU
Perihelion2.4358 AU
3.0488 AU
Eccentricity0.2011
5.32 yr (1,944 days)
55.529°
0° 11m 6.36s / day
Inclination3.2402°
83.187°
281.00°
Known satellites1[5][6]
Physical characteristics
Dimensions1.8±0.2 km (derived)[6]
3.20 km (calculated)[4]
Mass(6.15±4.85)×1012 kg[6][a]
0.057 (assumed)[4]
C (assumed)[4]
16.2[1][4] · 16.20±0.24[7]

(300163) 2006 VW139 (provisional designation 2006 VW139, periodic comet designation 288P/2006 VW139) is a binary active asteroid and main-belt comet from the outer regions of the asteroid belt. The object was discovered by Spacewatch in 2006. Its binary nature was confirmed by the Hubble Space Telescope in September 2016.[5] Both primary and its minor-planet moon are similar in mass and size, making it a true binary system.[5] The components are estimated to measure 1.8 kilometers in diameter, orbiting each other at a wide separation of 104 kilometers every 135 days.[4][6][8]

Discovery[edit]

2006 VW139 was discovered on 15 November 2006, by the Spacewatch survey at Kitt Peak National Observatory near Tucson, Arizona.[2] The possible cometary activity was seen in November 2011 by Pan-STARRS.[3] Both Spacewatch and Pan-STARRS are asteroid survey projects of NASA's Near Earth Object Observations Program. After the Pan-STARRS observations it was also given a comet designation of 288P.

Orbit and classification[edit]

2006 VW139 is a non-family asteroid of the main-belt's background population.[9] It is both a binary asteroid and a main-belt comet, also known as "active asteroid". It orbits the Sun in the outer main-belt at a distance of 2.4–3.7 AU once every 5 years and 4 months (1,944 days; semi-major axis of 3.05 AU). Its orbit has an eccentricity of 0.20 and an inclination of 3° with respect to the ecliptic.[1]

The body's observation arc begins on September 2000, with a precovery taken by the Sloan Digital Sky Survey at Apache Point Observatory, New Mexico, more than six years prior to its official discovery observation by Spacewatch at Kitt Peak.[2]

First binary main-belt comet[edit]

2006 VW139 was first observed by the Hubble Space Telescope (HST) in December 2011.[5] It was imaged by HST in September 2016, just before it made its closest approach to the Sun and confirmed its binary nature with two asteroids orbiting each other, and revealed ongoing cometary activity.[8] This makes the object the first known binary asteroid that is also classified as a main-belt comet.[8] The binary is thought to be the result of fission of the precursor caused by YORP-driven spinup.[5]

Observations of the HST revealed ongoing activity in this binary system. The combined features of this binary asteroid - wide separation, near-equal component size, high eccentricity orbit, and comet-like activity also make it unique among the few known binary asteroids that have a wide separation.[5][8]

Physical characteristics[edit]

Diameter, albedo, and mass[edit]

2006 VW139 has a derived diameter of 1.8±0.2 kilometer.[6] The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.057 and calculates a diameter of 3.20 kilometers based on an absolute magnitude of 16.2.[4] The binary system has an estimated mass between 1.3×1012 kg and 1.1×1013 kg.[5] A single component has a derived mass of (6.15±4.85)×1012 kg.[6]

Numbering and naming[edit]

This minor planet was numbered by the Minor Planet Center on 12 October 2011 (M.P.C. 76600).[10] As of 2020, it has not been named.[2]

Notes[edit]

  1. ^ The mass of the primary component(6.15±4.85)×1012 kg. The overall mass of the binary system is estimated to be between 1.3×1012 kg and 1.1×1013 kg.[5]

References[edit]

  1. ^ a b c d e f "JPL Small-Body Database Browser: 300163 (2006 VW139)" (2016-12-26 last obs.). Jet Propulsion Laboratory. Retrieved 24 November 2017.
  2. ^ a b c d e "(300163) 2006 VW139". Minor Planet Center. Retrieved 30 September 2020.
  3. ^ a b c Hsieh, Henry H.; Yang, Bin; Haghighipour, Nader; Kaluna, Heather M.; Fitzsimmons, Alan; Denneau, Larry; et al. (March 2012). "Discovery of Main-belt Comet P/2006 VW139 by Pan-STARRS1". The Astrophysical Journal Letters. 748 (1): 7. arXiv:1202.2126. Bibcode:2012ApJ...748L..15H. doi:10.1088/2041-8205/748/1/L15. S2CID 8693844.
  4. ^ a b c d e f g "LCDB Data for (300163)". Asteroid Lightcurve Database (LCDB). Retrieved 24 November 2017.
  5. ^ a b c d e f g h i Agarwal, Jessica; Jewitt, David; Mutchler, Max; Weaver, Harold; Larson, Stephen (September 2017). "A binary main-belt comet". Nature. 549 (7672): 357–359.(NatureHomepage). arXiv:1710.03454. Bibcode:2017Natur.549..357A. doi:10.1038/nature23892. PMID 28933430. S2CID 4469577.
  6. ^ a b c d e f Johnston, Wm. Robert (24 September 2017). "Asteroids with Satellites Database – (300163) 2006 VW139 (= 288P)". Johnston's Archive. Retrieved 24 November 2017.
  7. ^ Veres, Peter; Jedicke, Robert; Fitzsimmons, Alan; Denneau, Larry; Granvik, Mikael; Bolin, Bryce; et al. (November 2015). "Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results". Icarus. 261: 34–47. arXiv:1506.00762. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. S2CID 53493339.
  8. ^ a b c d "Comet or Asteroid? Hubble Discovers that a Unique Object is a Binary". NASA. 20 September 2017. Retrieved 28 July 2018.
  9. ^ "Asteroid (300163) 2006 VW139 – Proper Elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 28 October 2019.
  10. ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 24 November 2017.

External links[edit]

Retrieved from "https://en.wikipedia.org/w/index.php?title=(300163)_2006_VW139&oldid=1211278655"