# 11714 Mikebrown

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> Source revision: 1346052615
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{{Short description|Stony background asteroid from the central region of the asteroid belt}}
{{Use dmy dates|date=May 2024}}
{{Infobox planet
 | minorplanet     = yes
 | name            = 11714 Mikebrown
 | background      = #D6D6D6
 | image           = 
 | image_size      = 
 | caption         = 
 | discovery_ref   =<ref name="jpldata" />
 | discoverer      = [LONEOS](/source/Lowell_Observatory_Near-Earth_Object_Search)
 | discovery_site  = [Anderson Mesa Stn.](/source/Anderson_Mesa_Station)
 | discovered      = 28 April 1998
 | mpc_name        = (11714) Mikebrown
 | alt_names       = {{mp|1998 HQ|51}}{{·}}{{mp|1977 RX|8}}<br />{{mp|1986 TH|5}}{{·}}{{mp|1986 TW|10}}<br />{{mp|1986 UR|1}}
 | pronounced      = 
 | named_after     = [Michael E. Brown](/source/Michael_E._Brown)<br />{{nowrap|{{small|([minor planet discoverer](/source/List_of_minor_planet_discoverers))}}<ref name="springer" />}}
 | mp_category     = [main-belt](/source/main-belt)<ref name="jpldata" />{{·}}{{small|([central](/source/Kirkwood_gap))}}<br />[background](/source/Background_asteroid)
 | orbit_ref       =<ref name="jpldata" />
 | epoch           = 4 September 2017 ([JD](/source/Julian_day) 2458000.5)
 | uncertainty     = 0
 | observation_arc = 38.94 yr (14,224 days)
 | aphelion        = 3.3555 [AU](/source/Astronomical_unit)
 | perihelion      = 1.9897 AU
 | semimajor       = 2.6726 AU
 | eccentricity    = 0.2555
 | period          = 4.37 [yr](/source/Julian_year_(astronomy)) (1,596 days)
 | mean_anomaly    = 67.558[°](/source/Degree_(angle))
 | mean_motion     = {{Deg2DMS|0.2256|sup=ms}} / day
 | inclination     = 3.0156°
 | asc_node        = 178.73°
 | arg_peri        = 135.17°
 | mean_diameter   = {{val|4.451|0.945}} km<ref name="Masiero-2011" />
 | rotation        = 
 | albedo          = {{val|0.246|0.069}}<ref name="Masiero-2011" />
 | spectral_type   = 
 | abs_magnitude   = 14.1<ref name="jpldata" />
}}

'''11714 Mikebrown''', provisional designation ''{{mp|1998 HQ|51}}'', is a stony background [asteroid](/source/asteroid) from the central region of the [asteroid belt](/source/asteroid_belt), approximately {{convert|4.5|km|mi|abbr=off|sp=us}} in diameter. It was discovered on 28 April 1998, by astronomers of the ''Lowell Observatory Near-Earth Object Search'' ([LONEOS](/source/Lowell_Observatory_Near-Earth-Object_Search)) at the U.S. [Anderson Mesa Station](/source/Anderson_Mesa_Station) near Flagstaff, Arizona, and later named after American astronomer [Michael Brown](/source/Michael_E._Brown).<ref name="springer" /><ref name="MPC-Mikebrown" />

== Orbit and classification ==
[[File:Mikebrown-2010Jan.gif|200px|thumb|left|In January 2010, ''Mikebrown'' came to [opposition](/source/Opposition_(planets)) with [Mercury](/source/Mercury_(planet)), [Earth](/source/Earth), and [Mars](/source/Mars).]]

''Mikebrown'' is a non-[family](/source/Asteroid_family) asteroid from the main belt's [background population](/source/Background_asteroid). It orbits the Sun in the [central](/source/Kirkwood_gap) main-belt at a distance of 2.0–3.4&nbsp;[AU](/source/Astronomical_unit) once every 4 years and 4 months (1,596 days). Its orbit has an [eccentricity](/source/orbital_eccentricity) of 0.26 and an [inclination](/source/orbital_inclination) of 3[°](/source/Degree_(angle)) with respect to the [ecliptic](/source/ecliptic).<ref name="jpldata" />

On 15 May 2012, ''Mikebrown'' came within about 14.8 [Gm](/source/Gigametre) (0.099 [AU](/source/Astronomical_unit)) of asteroid [625&nbsp;Xenia](/source/625%26nbsp%3BXenia).<ref name="Mikebrown" />

It was first observed as ''{{mp|1977 RX|8}}'' [Palomar Observatory](/source/Palomar_Observatory) in 1977, extending the body's [observation arc](/source/observation_arc) by 21 years prior to its official discovery observation at Anderson Mesa.<ref name="MPC-Mikebrown" />

== Naming ==

This [minor planet](/source/minor_planet) was named after American astronomer [Michael E. Brown](/source/Michael_E._Brown) (born 1965), a professor of astronomy at [Caltech](/source/California_Institute_of_Technology) in California, and best known for his discoveries of [trans-Neptunian object](/source/trans-Neptunian_object)s, in particular the dwarf planet [136199 Eris](/source/136199_Eris). The official naming citation was published on 24 July 2002 ({{small|[M.P.C.](/source/Minor_Planet_Circulars) {{MoMP|11714|46104}}}}).<ref name="MPC-Circulars-Archive" />

== Physical characteristics ==

According to the survey carried out by NASA's [Wide-field Infrared Survey Explorer](/source/Wide-field_Infrared_Survey_Explorer) with its subsequent [NEOWISE](/source/NEOWISE) mission, ''Mikebrown'' measures 4.451 kilometers in diameter and its surface has an [albedo](/source/astronomical_albedo) of 0.246, which is typical for stony [S-type asteroid](/source/S-type_asteroid)s.<ref name="Masiero-2011" />

It has an [absolute magnitude](/source/absolute_magnitude) of 14.1.<ref name="jpldata" /> As of 2017, no rotational [lightcurve](/source/lightcurve) of ''Mikebrown'' has been obtained from photometric observations, and the body's [rotation period](/source/rotation_period) and shape remains unknown.<ref name="jpldata" /><ref name="lcdb" />

== References ==
{{reflist|30em|refs=

<ref name="jpldata">{{cite web
  |type       = 2016-08-18 last obs.
  |title      = JPL Small-Body Database Browser: 11714 Mikebrown (1998 HQ51)
  |url        = https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2011714
  |publisher  = [Jet Propulsion Laboratory](/source/Jet_Propulsion_Laboratory)
  |access-date = 5 July 2017}}</ref>

<ref name="springer">{{cite book
  |title      = Dictionary of Minor Planet Names – (11714) Mikebrown
  |last       = Schmadel | first = Lutz D.
  |publisher  = [Springer Berlin Heidelberg](/source/Springer_Berlin_Heidelberg)
  |page       = 767
  |date       = 2007
  |isbn       = 978-3-540-00238-3
  |doi       = 10.1007/978-3-540-29925-7_8424 |chapter       = (11714) Mikebrown }}</ref>

<ref name="MPC-Mikebrown">{{cite web
  |title      = 11714 Mikebrown (1998 HQ51)
  |work       = Minor Planet Center
  |url        = https://www.minorplanetcenter.net/db_search/show_object?object_id=11714
  |access-date = 25 April 2017}}</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
  |access-date = 25 April 2017}}</ref>

<ref name="Masiero-2011">{{cite journal
  |display-authors = 6
  |first1     = Joseph R. |last1 = Masiero
  |first2     = A. K. |last2 = Mainzer
  |first3     = T. |last3 = Grav
  |first4     = J. M. |last4 = Bauer
  |first5     = R. M. |last5 = Cutri
  |first6     = J. |last6 = Dailey
  |first7     = P. R. M. |last7 = Eisenhardt
  |first8     = R. S. |last8 = McMillan
  |first9     = T. B. |last9 = Spahr
  |first10    = M. F. |last10 = Skrutskie
  |first11    = D. |last11 = Tholen
  |first12    = R. G. |last12 = Walker
  |first13    = E. L. |last13 = Wright
  |first14    = E. |last14 = DeBaun
  |first15    = D. |last15 = Elsbury
  |first16    = T. IV |last16 = Gautier
  |first17    = S. |last17 = Gomillion
  |first18    = A. |last18 = Wilkins
  |date       = November 2011
  |title      = Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters
  |url        = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011ApJ...741...68M
  |journal    = The Astrophysical Journal
  |volume     = 741
  |issue      = 2
  |page       = 20
  |bibcode    = 2011ApJ...741...68M
  |doi        = 10.1088/0004-637X/741/2/68
  |arxiv      = 1109.4096
  |s2cid = 118745497 |access-date= 25 April 2017}}</ref>

<ref name="lcdb">{{cite LCDB|number = 11714
  |access-date = 25 April 2017}}</ref>

<ref name="Mikebrown">{{cite web
 |title        = Mikebrown close approaches less than 15Gm
 |url          = http://home.surewest.net/kheider/astro/Mikebrown.txt
 |access-date   = 2010-01-29
 |archive-url  = https://web.archive.org/web/20120225212210/http://home.surewest.net/kheider/astro/Mikebrown.txt
 |archive-date = 2012-02-25
 
 }} [http://chemistry.unina.it/~alvitagl/solex/ (Solex 10)] {{webarchive|url=https://web.archive.org/web/20081220235836/http://chemistry.unina.it/~alvitagl/solex/ |date=2008-12-20 }}</ref>

}} <!-- end of reflist -->

== External links ==
* [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
* [http://obswww.unige.ch/~behrend/page_cou.html Asteroids and comets rotation curves, CdR] – Observatoire de Genève, Raoul Behrend
* [https://www.minorplanetcenter.net/iau/lists/NumberedMPs010001.html Discovery Circumstances: Numbered Minor Planets (10001)-(15000)] – Minor Planet Center
* {{AstDys|11714}}
* {{JPL small body}}

{{Minor planets navigator |11713 Stubbs |number=11714 |11715 Harperclark}}
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Adapted from the Wikipedia article [11714 Mikebrown](https://en.wikipedia.org/wiki/11714_Mikebrown) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/11714_Mikebrown?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.
