2873 Binzel
{{Short description|Florian asteroid and binary system}}
{{Use dmy dates|date=June 2019}}
{{Infobox planet
| minorplanet = yes
| name = 2873 Binzel
| background = #D6D6D6
| image =
| image_size =
| caption =
| discoverer = E. Bowell
| discovery_site = Anderson Mesa Stn.
| discovered = 28 March 1982
| mpc_name = (2873) Binzel
| alt_names = 1982 FR{{·}}1935 KH
1935 MH{{·}}1938 GA
{{mp|1959 RA|1}}
| pronounced =
| named_after = Richard Binzel
{{small|(American astronomer)}}
| mp_category = main-belt{{·}}{{small|(inner)}}
Flora
| epoch = 4 September 2017 (JD 2458000.5)
| uncertainty = 0
| observation_arc = 81.27 yr (29,683 days)
| aphelion = 2.6074 AU
| perihelion = 1.8954 AU
| semimajor = 2.2514 AU
| eccentricity = 0.1581
| period = 3.38 yr (1,234 days)
| mean_anomaly = 112.97°
| mean_motion = {{Deg2DMS|0.2918|sup=ms}} / day
| inclination = 5.9003°
| asc_node = 100.97°
| arg_peri = 168.33°
| dimensions = {{val|6.426|0.471}} km
6.48 km {{small|(calculated)}}
{{val|7.011|0.063}} km
| rotation = {{val|11.560|0.0037}} h
| albedo = {{val|0.2307|0.0722}}
0.24 {{small|(assumed)}}
{{val|0.272|0.060}}
| spectral_type = SMASS {{=}} Sq{{·}}S
| abs_magnitude = {{val|12.660|0.002}} {{small|(R)}}{{·}}12.99{{·}}{{val|13.10|0.41}}{{·}}13.11
}}
2873 Binzel, provisional designation {{mp|1982 FR}}, is a stony Florian asteroid and binary system from the inner regions of the asteroid belt, approximately 6.5 kilometers in diameter. It was discovered on 28 March 1982, by American astronomer Edward Bowell at the Anderson Mesa Station in Flagstaff, Arizona. The asteroid was named after astronomer Richard Binzel. Its 1.6-kilometer minor-planet moon was discovered in 2019.
Orbit and classification
Binzel is a member of the Flora family ({{small|402}}), a giant asteroid family and the largest family of stony asteroids in the main-belt.{{rp|23}} It orbits the Sun in the inner main belt at a distance of 1.9–2.6 AU once every 3 years and 5 months (1,234 days). Its orbit has an eccentricity of 0.16 and an inclination of 6° with respect to the ecliptic.
The body's observation arc begins with its identification as {{mp|1935 KH}} at the Johannesburg Observatory in 1935, almost 47 years prior to its official discovery observation at Anderson Mesa.
Physical characteristics
In the SMASS classification, Binzel is a Sq-subtype, which transition from the common stony S-type asteroids to the less common Q-types.
= Rotation period =
In September 2010, a rotational lightcurve of Binzel was obtained from photometric observations in the R-band by astronomers at the Palomar Transient Factory in California. Lightcurve analysis gave a rotation period of 11.560 hours with a brightness variation of 0.14 magnitude ({{small|U=2}}).
= Diameter and albedo =
According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Binzel measures 6.426 and 7.011 kilometers in diameter and its surface has an albedo of 0.2307 and 0.272, respectively.
The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.24 – derived from 8 Flora, the largest member and namesake of the Flora family – and calculates a diameter of 6.48 kilometers based on an absolute magnitude of 13.11.
Naming
This minor planet was named after American astronomer Richard Binzel (born 1958) of the University of Texas at Austin. During the 1980s, Binzel has been a prolific photometrist, obtaining a large number of rotational lightcurves of main-belt asteroids. The official naming citation was prepared by Alan W. Harris and published by the Minor Planet Center on 8 November 1984 ({{small|M.P.C. 9215}}).
References
{{reflist|30em|refs=
|type = 2016-08-29 last obs.
|title = JPL Small-Body Database Browser: 2873 Binzel (1982 FR)
|url = https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2002873
|publisher = Jet Propulsion Laboratory
|accessdate = 30 August 2017}}
|last = Schmadel | first = Lutz D.
|title = Dictionary of Minor Planet Names |publisher = Springer Berlin Heidelberg
|page = 236
|date = 2007
|isbn = 978-3-540-00238-3
|doi = 10.1007/978-3-540-29925-7_2874 |chapter = (2873) Binzel }}
|title = 2873 Binzel (1982 FR)
|work = Minor Planet Center
|url = https://www.minorplanetcenter.net/db_search/show_object?object_id=2873
|accessdate = 30 August 2017}}
|title = MPC/MPO/MPS Archive
|work = Minor Planet Center
|url = https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html
|accessdate = 30 August 2017}}
|display-authors = 6
|first1 = Joseph R. |last1 = Masiero
|first2 = T. |last2 = Grav
|first3 = A. K. |last3 = Mainzer
|first4 = C. R. |last4 = Nugent
|first5 = J. M. |last5 = Bauer
|first6 = R. |last6 = Stevenson
|first7 = S. |last7 = Sonnett
|date = August 2014
|title = Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos
|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2014ApJ...791..121M
|journal = The Astrophysical Journal
|volume = 791
|issue = 2
|page = 11
|bibcode = 2014ApJ...791..121M
|doi = 10.1088/0004-637X/791/2/121
|arxiv = 1406.6645
|access-date= 30 August 2017}}
|title = LCDB Data for (2873) Binzel
|publisher = Asteroid Lightcurve Database (LCDB)
|url = http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=2873%7CBinzel
|accessdate = 30 August 2017}}
|display-authors = 6
|first1 = A. |last1 = Mainzer
|first2 = T. |last2 = Grav
|first3 = J. |last3 = Masiero
|first4 = E. |last4 = Hand
|first5 = J. |last5 = Bauer
|first6 = D. |last6 = Tholen
|first7 = R. S. |last7 = McMillan
|first8 = T. |last8 = Spahr
|first9 = R. M. |last9 = Cutri
|first10 = E. |last10 = Wright
|first11 = J. |last11 = Watkins
|first12 = W. |last12 = Mo
|first13 = C. |last13 = Maleszewski
|date = November 2011
|title = NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results
|journal = The Astrophysical Journal
|volume = 741
|issue = 2
|page = 25
|bibcode = 2011ApJ...741...90M
|doi = 10.1088/0004-637X/741/2/90
|arxiv = 1109.6407}}
|display-authors = 6
|first1 = Adam |last1 = Waszczak
|first2 = Chan-Kao |last2 = Chang
|first3 = Eran O. |last3 = Ofek
|first4 = Russ |last4 = Laher
|first5 = Frank |last5 = Masci
|first6 = David |last6 = Levitan
|first7 = Jason |last7 = Surace
|first8 = Yu-Chi |last8 = Cheng
|first9 = Wing-Huen |last9 = Ip
|first10 = Daisuke |last10 = Kinoshita
|first11 = George |last11 = Helou
|first12 = Thomas A. |last12 = Prince
|first13 = Shrinivas |last13 = Kulkarni
|date = September 2015
|title = Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry
|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015AJ....150...75W
|journal = The Astronomical Journal
|volume = 150
|issue = 3
|page = 35
|bibcode = 2015AJ....150...75W
|doi = 10.1088/0004-6256/150/3/75
|arxiv = 1504.04041
|access-date= 30 August 2017}}
|display-authors = 6
|first1 = Peter |last1 = Veres
|first2 = Robert |last2 = Jedicke
|first3 = Alan |last3 = Fitzsimmons
|first4 = Larry |last4 = Denneau
|first5 = Mikael |last5 = Granvik
|first6 = Bryce |last6 = Bolin
|first7 = Serge |last7 = Chastel
|first8 = Richard J. |last8 = Wainscoat
|first9 = William S. |last9 = Burgett
|first10 = Kenneth C. |last10 = Chambers
|first11 = Heather |last11 = Flewelling
|first12 = Nick |last12 = Kaiser
|first13 = Eugen A. |last13 = Magnier
|first14 = Jeff S. |last14 = Morgan
|first15 = Paul A. |last15 = Price
|first16 = John L. |last16 = Tonry
|first17 = Christopher |last17 = Waters
|date = November 2015
|title = Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results
|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015Icar..261...34V
|journal = Icarus
|volume = 261
|pages = 34–47
|bibcode = 2015Icar..261...34V
|doi = 10.1016/j.icarus.2015.08.007
|arxiv = 1506.00762
|access-date= 30 August 2017}}
|title = Asteroid 2873 Binzel – Nesvorny HCM Asteroid Families V3.0
|work = Small Bodies Data Ferret
|url = https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=2873+Binzel#Asteroid%202873%20BinzelEAR-A-VARGBDET-5-NESVORNYFAM-V3.0
|accessdate = 26 October 2019}}
|first1 = D. |last1 = Nesvorný
|first2 = M. |last2 = Broz
|first3 = V. |last3 = Carruba
|date = December 2014
|chapter = Identification and Dynamical Properties of Asteroid Families
|title = Asteroids IV
|pages = 297–321
|bibcode = 2015aste.book..297N
|doi = 10.2458/azu_uapress_9780816532131-ch016
|arxiv = 1502.01628
|isbn = 9780816532131 }}
|title = Asteroids with Satellites Database – (2873) Binzel
|work = Johnston's Archive
|date = 27 May 2019
|last = Johnston |first= Wm. Robert
|url = http://www.johnstonsarchive.net/astro/astmoons/am-02873.html
|accessdate = 4 June 2019}}
}}
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/NumberedMPs000001.html Discovery Circumstances: Numbered Minor Planets (1)-(5000)] – Minor Planet Center
- {{AstDys|2873}}
- {{JPL small body|title=2873 Binzel (1982 FR)|id=2002873}}
{{Minor planets navigator|2872 Gentelec |number=2873 |2874 Jim Young}}
{{Small Solar System bodies}}
{{Authority control}}
{{DEFAULTSORT:Binzel}}