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{{short description|Asteroid}}
{{Infobox planet
| minorplanet = yes
| name = 274301 Wikipedia
| background = #D6D6D6
| image = Orbit of 274301 Wikipedia.svg
| image_size = 270
| caption = Orbit of ''Wikipedia''
| discovery_ref =  <ref name="MPC-object" />
| discoverer = [[Andrushivka Astronomical Observatory|Andrushivka Obs.]]
| discovery_site = [[Andrushivka Astronomical Observatory|Andrushivka Obs.]]
| discovered = 25 August 2008
| mpc_name = (274301) Wikipedia
| alt_names = {{mp|2008 QH|24}} {{mp|1997 RO|4}} {{mp|2007 FK|34}}
| pronounced = {{IPAc-en|ˌ|w|ɪ|k|i|ˈ|p|iː|d|i|ə}} {{respell|WIK|i|PEE|dee-ə}}
| named_after = [[Wikipedia]] {{small|(online encyclopedia)}}<ref name="MPC-object" />
| mp_category = [[Main belt]]<ref name="MPC-object" /><ref name="jpldata" />{{·}}{{small|([[Kirkwood gap|inner]])}} [[Vesta family|Vesta]] <ref name="Ferret" />
| orbit_ref =  <ref name="jpldata" />
| epoch = 23 March 2018 ([[Julian day|JD]] 2458200.5)
| uncertainty = 0
| observation_arc = 20.62 [[Julian year (astronomy)|yr]] (7,530 d)
| aphelion = 2.7316 [[Astronomical unit|AU]]
| perihelion = 2.0307 AU
| semimajor = 2.3811 AU
| eccentricity = 0.1472
| period = 3.67 yr (1,342 d)
| mean_anomaly = 228.37[[Degree (angle)|°]]
| mean_motion = {{Deg2DMS|0.2682|sup=ms}} / day
| inclination = 6.7341°
| asc_node = 183.41°
| arg_peri = 139.47°
| mean_diameter = {{val|1.3|ul=km}} {{small|(est. at [[astronomical albedo|0.20]])}}<ref name="h" /> {{val|1.5|0.5|u=km}} {{small|(assumed)}}<ref name="nbcnews20130205"/>
| rotation =
| albedo =
| spectral_type = [[V-type asteroid|V]] or [[S-type asteroid|S]] {{small|([[Sloan Digital Sky Survey|SDSS]]-MOC)}}<ref name="Ferret" />
| abs_magnitude = 16.9<ref name="MPC-object" />
}}

'''274301 Wikipedia''' ({{IPAc-en|ˌ|w|ɪ|k|i|ˈ|p|iː|d|i|ə}} {{respell|WIK|i|PEE|dee-ə}}), provisional designation '''{{mp|2008 QH|24}}''', is a [[Vesta family|Vestian asteroid]] orbiting in the inner region of the [[asteroid belt]], approximately {{convert|1.3|km|mi|sigfig=1|sp=us}} in diameter. It was discovered on 25 August 2008 by astronomers at the [[Andrushivka Astronomical Observatory]] in northern Ukraine.<ref name="MPC-object" /> The [[asteroid]] was named after the online encyclopedia [[Wikipedia]] in January 2013.<ref name="jpldata" />

== Discovery ==

''Wikipedia'' was discovered by astronomers from the Andrushivka Astronomical Observatory {{Obscode|A50}} in [[Ukraine]], the country's only privately owned observatory,<ref name="regio" /> which has discovered nearly 90 asteroids since 2003.<ref name="MPC-discoverers" /> It was first observed by the Andrushivka team on 25 August 2008 at 22:47 [[UTC]].<ref name="MPC-object" /> It was also observed on the next night and it received provisional designation {{mp|2008 QH|24}}.<ref name="mps_255948" /> After it was also observed on 6 September by the Andrushivka team, the orbit of the asteroid was calculated accurately. It was shown that the asteroid {{mp|2008 QH|24}} was the same as {{mp|1997 RO|4}} and {{mp|2007 FK|34}} previously spotted by observatories [[Caussols]]-[[OCA-DLR Asteroid Survey|ODAS]] (France), [[Mount Lemmon Survey]] and [[Steward Observatory]] (both in Arizona, U.S.).<ref name="MPC-object" />

On 18 April 2011, ''Wikipedia'' received the number 274301.<ref name="mpc_74684" />

== Classification and orbit ==

''Wikipedia'' is a member of the [[Vesta family]], one of the most numerous [[asteroid families]] in the [[asteroid belt]].<ref name="Ferret" /> It is located in the proximity of [[21791 Mattweegman]], one of the family's principal members.<ref name="AstDys-object" /> Vestian asteroids have a composition akin to cumulate [[eucrite]]s ([[HED meteorite]]s). They are thought to have originated deep within [[4 Vesta|Vesta's]] crust, possibly from the [[Rheasilvia|Rheasilvia crater]], a large [[impact crater]] on its southern hemisphere which formed as the result of a subcatastrophic collision.<ref name="Kelley-2003" />

''Wikipedia'' orbits the Sun in the [[Kirkwood gap|inner]] asteroid belt at a distance of {{convert|2.0|-|2.7|AU|e6km|abbr=unit}} once every 3 years and 8 months (1,342 days; [[semi-major axis]] of 2.38 AU). Its orbit has an [[orbital eccentricity|eccentricity]] of 0.15 and an [[orbital inclination|inclination]] of 7[[Degree (angle)|°]] with respect to the [[ecliptic]].<ref name="jpldata" /> The asteroid's [[observation arc]] begins almost 11 years prior to its official discovery, with its first observation being {{mp|1997 RO|4}} by the [[OCA–DLR Asteroid Survey|ODAS survey]] in September 1997.<ref name="MPC-object" />

== Name ==

The decision of the [[Committee for Small Body Nomenclature]] to assign the name "Wikipedia" to the asteroid was published in the [[Minor Planet Circulars]] on 27 January 2013 ({{small|[[Minor Planet Circulars|M.P.C.]] 82403}}).<ref name="MPC-Circulars-Archive" /> The name was proposed by Andriy Makukha, a board member of [[Wikimedia Ukraine]]. It was submitted to the Committee by the owner of the observatory, [[Yuri Ivashchenko]].<ref name="regio" /> It reads:
{{cquote| Wikipedia is a free, copyleft, collaboratively edited online encyclopedia launched in 2001. In 11 years of its compilation it became one of the largest reference works and one of the most visited web-sites on the Internet. It is developed in more than 270 languages by enthusiasts from all over the world. |author=[[International Astronomical Union]] |source=13 January 2013<ref name="jpldata" />}}

== See also ==
{{Portal|Solar System}}
* [[List of minor planets]]

== References ==
{{Reflist|30em|refs=

<ref name="jpldata">{{cite web
|type = 2018-04-21 last obs.
|title = JPL Small-Body Database Browser: 274301 Wikipedia (2008 QH24)
|url = https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2274301
|publisher = [[Jet Propulsion Laboratory]]
|accessdate = 7 July 2018}}</ref>

<ref name="MPC-object">{{cite web
|title = 274301 Wikipedia (2008 QH24)
|work = Minor Planet Center
|url = https://www.minorplanetcenter.net/db_search/show_object?object_id=274301
|accessdate = 7 July 2018}}</ref>

<ref name="MPC-Circulars-Archive">{{cite web
|title = MPC/MPO/MPS Archive
|work = Minor Planet Center
|url = https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html
|accessdate = 7 July 2018}}</ref>

<ref name="h">{{cite web
|title = Asteroid Size Estimator
|publisher = CNEOS NASA/JPL
|url = https://cneos.jpl.nasa.gov/tools/ast_size_est.html
|accessdate = 7 July 2018}}</ref>

<ref name="MPC-discoverers">{{cite web
|title = Minor Planet Discoverers
|work = Minor Planet Center
|url = https://www.minorplanetcenter.net/iau/lists/MPDiscsNum.html
|date = 31 May 2018
|accessdate = 7 July 2018}}</ref>

<ref name="mps_255948">{{cite web |url=https://www.minorplanetcenter.net/iau/ECS/MPCArchive/2008/MPS_20080914.pdf |title=MPS 255948 |work=Minor Planet Center |date=14 September 2008}}</ref>

<ref name="mpc_74684">{{cite web |url=https://www.minorplanetcenter.net/iau/ECS/MPCArchive/2011/MPC_20110418.pdf |title=MPC 74684 |work=Minor Planet Center |date=18 April 2011}}</ref>

<ref name="AstDys-object">{{cite web
|title = Asteroid (274301) Wikipedia – Proper Elements
|publisher = AstDyS-2, Asteroids – Dynamic Site
|url = http://hamilton.dm.unipi.it/astdys/index.php?n=274301&pc=1.1.6
|access-date= 22 June 2018}}</ref>

<ref name="Ferret">{{cite web
|title = Asteroid 274301 Wikipedia
|work = Small Bodies Data Ferret
|url = https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=274301+Wikipedia
|accessdate = 7 July 2018}}</ref>

<ref name="Kelley-2003">{{cite journal
|first1 = Michael S. |last1 = Kelley
|first2 = Faith |last2 = Vilas
|first3 = Michael J. |last3 = Gaffey
|first4 = Paul A. |last4 = Abell
|date = September 2003
|title = Quantified mineralogical evidence for a common origin of 1929 Kollaa with 4 Vesta and the HED meteorites
|url = https://zenodo.org/record/1259601
|journal = Icarus
|volume = 165
|issue = 1
|pages = 215–218
|bibcode = 2003Icar..165..215K
|doi = 10.1016/S0019-1035(03)00149-0
|accessdate = 7 July 2018}}</ref>

<ref name="nbcnews20130205">{{cite news |url=http://www.nbcnews.com/id/50709792/ |title='Wikipedia' is in space — as an asteroid |work=NBC News |first=Robert |last=Workman |date=5 February 2013 |access-date=12 February 2013}}</ref>

<ref name="regio">{{cite web |url=http://regionews.ua/node/79163 |title=Астероїд, відкритий в Україні, було названо "Вікіпедія" |work=RegioNews |date=31 January 2013}}</ref>

}} 

== External links ==
{{Wikinews|Main belt asteroid No. 274301 named 'Wikipedia'}}
* [http://www.minorplanetcenter.net/iau/lists/NumberedMPs270001.html Discovery Circumstances: Numbered Minor Planets (270001)-(275000)], Minor Planet Center
* [https://books.google.com/books?id=aeAg1X7afOoC ''Dictionary of Minor Planet Names''], Google Books
* {{AstDys|274301}}
* {{JPL small body}}

{{Asteroids}}
{{Minor planets navigator| |number=274301| }}
{{Small Solar System bodies}}
{{Wikipedia}}

{{Use dmy dates|date=October 2018}}

{{DEFAULTSORT:Wikipedia}}
[[Category:Vesta asteroids|274301]]
[[Category:Numbered minor planets|274301]]
[[Category:Discoveries by the Andrushivka Astronomical Observatory|274301]]
[[Category:Named minor planets]]
[[Category:Wikipedia|274301 Wikipedia]]
[[Category:Astronomical objects discovered in 2008|20080825]]

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Weegaweek: added short description