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11948 Justinehénin
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Themistian asteroid from the outer region of the asteroid belt
October 2019
yes
11948 Justinehénin
#D6D6D6
18 August 1993
E. W. Elst
CERGA (Caussols Obs.)
(11948) Justinehénin
1993 QQ 41973 AE 31991 EJ 81997 GW 24
Justine Henin(Belgian tennis player)
main-belt(inner)Themis
4 September 2017 (JD 2458000.5)
0
44.01 yr (16,076 days)
3.5804 AU
2.8195 AU
3.2000 AU
0.1189
5.72 yr (2,091 days)
168.53°
0.1722 ms / day
1.8914°
159.16°
75.735°
12 km (calculated at 0.06)
13.2
11948 Justinehénin, provisional designation 1993 QQ 4, is a Themistian asteroid from the outer region of the asteroid belt, approximately 12 kilometers in diameter.
The asteroid was discovered on 18 August 1993, by Belgian astronomer Eric Elst at CERGA (010) in Caussols, southeastern France. It was named for tennis player Justine Henin.
Orbit and classification
Justinehénin orbits the Sun in the outer main-belt at a distance of 2.8–3.6 AU once every 5 years and 9 months (2,091 days). Its orbit has an eccentricity of 0.12 and an inclination of 2° with respect to the ecliptic. The first identification was made at Crimea–Nauchnij in 1973, extending the asteroid's observation arc by 31 years prior to its discovery.
Physical characteristics
Diameter and albedo
Based on an absolute magnitude of 13.2, Justinehénin potentially measures between 6 and 14 kilometers in diameter, assuming an albedo in the range of 0.05 to 0.25. Since asteroids in the outer main-belt are mostly of a carbonaceous rather than of a silicaceous composition, with low albedos, typically around 0.06, Justinehénins diameter might be on the upper end of NASA's published conversion table, as the lower the body's reflectivity (albedo), the larger its diameter at a constant absolute magnitude (brightness).
Lightcurves
As of 2017, the asteroid's effective size, its composition and albedo, as well as its rotation period and shape remain unknown.
Naming
This minor planet was named for Belgian former professional tennis player Justine Henin (born 1985). Although her name (usually)https://group.bnpparibas/en/news/bnp-paribas-presents-solidarity-initiatives-including-rglegendstalks-tribute-roland-garros BNP Paribas presents solidarity initiatives including #RGLegendsTalks, a tribute to Roland-Garros - BNP Paribas BNP Paribas contains no acute accent, the asteroid's official name does. The official naming citation was published by the Minor Planet Center on 10 September 2003 (M.P.C. 49674).
References
30em 2017-01-07 last obs.
JPL Small-Body Database Browser: 11948 Justinehenin (1993 QQ4)
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2011948
Jet Propulsion Laboratory
23 June 2017
Dictionary of Minor Planet Names – (11948) Justinehénin, Addendum to Fifth Edition: 2003–2005
Schmadel Lutz D.
Springer Berlin Heidelberg
66
2006
978-3-540-34361-5
10.1007/978-3-540-34361-5_612 (11948) Justinehénin [3.21, 0.11, 1.9]
11948 Justinehenin (1993 QQ4)
Minor Planet Center
https://www.minorplanetcenter.net/db_search/show_object?object_id=11948
9 July 2016
Absolute Magnitude (H)
NASA/JPL
http://neo.jpl.nasa.gov/glossary/h.html
https://web.archive.org/web/20010302182040/http://neo.jpl.nasa.gov/glossary/h.html
dead
2 March 2001
9 July 2016
MPC/MPO/MPS Archive
Minor Planet Center
https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html
9 July 2016
11948
23 June 2017
External links
Asteroid Lightcurve Database (LCDB), query form (info https://web.archive.org/web/20171216050541/http://www.minorplanet.info/lightcurvedatabase.html 16 December 2017 )
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR https://web.archive.org/web/20160729213840/http://obswww.unige.ch/~behrend/page_cou.html 29 July 2016 – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (10001)-(15000) – Minor Planet Center
11948
11947 Kimclijsters 11948 11949 Kagayayutaka
011948
Category:Discoveries by Eric Walter Elst
Category:Named minor planets
19930818