2140 Kemerovo
{{Short description|Dark asteroid}}
{{Use dmy dates|date=October 2019}}
{{Infobox planet
| minorplanet = yes
| name = 2140 Kemerovo
| background = #D6D6D6
| image =
| image_size =
| caption =
| discovered = 3 August 1970
| discoverer = L. Chernykh
T. Smirnova
| discovery_site = {{nowrap|Crimean Astrophysical Obs.}}
| mpc_name = (2140) Kemerovo
| alt_names = 1970 PE{{·}}1926 AJ
1940 WB{{·}}{{mp|1952 BH|1}}
1957 BB{{·}}1973 FY
1974 MP{{·}}{{mp|1975 NM|1}}
1975 QJ{{·}}{{mp|1975 RM|1}}
| named_after = Kemerovo Oblast
{{small|(Russian federal subject)}}
| mp_category = main-belt{{·}}{{small|(outer)}}
| epoch = 4 September 2017 (JD 2458000.5)
| uncertainty = 0
| observation_arc = 64.85 yr (23,688 days)
| aphelion = 3.1617 AU
| perihelion = 2.8137 AU
| semimajor = 2.9877 AU
| eccentricity = 0.0582
| period = 5.16 yr (1,886 days)
| mean_anomaly = 334.71°
| mean_motion = {{Deg2DMS|0.1909|sup=ms}} / day
| inclination = 6.9851°
| asc_node = 274.75°
| arg_peri = 119.69°
| dimensions = 29.33 km {{small|(derived)}}
{{val|29.49|1.6}} km {{small|(IRAS:4)}}
{{val|32.11|0.52}} km
{{val|34.539|0.128}}
{{val|37.886|0.366}} km
| rotation = {{val|9.2|0.6}} h {{small|(2006)}}
| albedo = {{val|0.0537|0.0073}}
0.0620 {{small|(derived)}}
{{val|0.063|0.007}}
{{val|0.076|0.003}}
{{val|0.0887|0.011}} {{small|(IRAS:4)}}
| spectral_type = P {{·}}X {{small|(Tholen)}}
| abs_magnitude = 10.9{{·}}11.3
}}
2140 Kemerovo, provisional designation {{mp|1970 PE}}, is a dark asteroid from the outer region of the asteroid belt, approximately 30 kilometers in diameter.
The asteroid was discovered on 3 August 1970, by Russian female astronomers Lyudmila Chernykh and Tamara Smirnova at the Crimean Astrophysical Observatory in Nauchnyj, on the Crimean peninsula. It was named after Kemerovo Oblast in Siberia.
Orbit and classification
Kemerovo orbits the Sun in the outer main-belt at a distance of 2.8–3.2 AU once every 5 years and 2 months (1,886 days). Its orbit has an eccentricity of 0.06 and an inclination of 7° with respect to the ecliptic.
It was first identified as {{mp|1926 AJ}} at Bergedorf Observatory in 1926. The body's observation arc begins with its first used observation, a precovery taken at Palomar Observatory in 1951, approximately 19 years prior to its official discovery at Nauchnyj.
Physical characteristics
In the Tholen taxonomy, Kemerovo is an X-type asteroid. The dark body has also been characterized as a rare and reddish P-type asteroid by the NEOWISE mission.
= Lightcurves =
Two rotational lightcurves of Kemerovo were obtained from photometric observations made by French astronomers René Roy, Laurent Bernasconi and Olivier Thizy in August 2001 and July 2006. Both lightcurves gave a rotation period of {{val|9.2|0.6}} hours with a brightness amplitude of 0.18 and 0.19 in magnitude, respectively ({{small|U=2/2}}).
= Diameter and albedo =
According to the space-based surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite (mid-infrared), and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Kemerovo measures between 29.5 and 37.9 kilometers in diameter, and its surface has an albedo between 0.05 and 0.09. The Collaborative Asteroid Lightcurve Link derives an albedo of 0.062 and calculates a diameter of 29.3 kilometers with an absolute magnitude of 11.3.
Naming
This minor planet was named after Kemerovo Oblast, the regional center of the Russian Kemerovo district, and a significant industrial center in Siberia. The official naming citation was published by the Minor Planet Center on 8 February 1982 ({{small|M.P.C. 6647}}).
References
{{reflist|30em|refs=
|type = 2016-11-03 last obs.
|title = JPL Small-Body Database Browser: 2140 Kemerovo (1970 PE)
|url = https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2002140
|publisher = Jet Propulsion Laboratory
|accessdate = 11 June 2017}}
|title = Dictionary of Minor Planet Names – (2140) Kemerovo
|last = Schmadel | first = Lutz D.
|publisher = Springer Berlin Heidelberg
|page = 173
|date = 2007
|isbn = 978-3-540-00238-3
|doi = 10.1007/978-3-540-29925-7_2141 |chapter = (2140) Kemerovo }}
|title = 2140 Kemerovo (1970 PE)
|work = Minor Planet Center
|url = https://www.minorplanetcenter.net/db_search/show_object?object_id=2140
|accessdate = 18 May 2016}}
|title = MPC/MPO/MPS Archive
|work = Minor Planet Center
|url = https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html
|accessdate = 18 May 2016}}
|title = Asteroids and comets rotation curves – (2140) Kemerovo
|last = Behrend |first = Raoul
|publisher = Geneva Observatory
|url = http://obswww.unige.ch/~behrend/page4cou.html#002140
|accessdate = 18 May 2016}}
|title = LCDB Data for (2140) Kemerovo
|publisher = Asteroid Lightcurve Database (LCDB)
|url = http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=2140%7CKemerovo
|accessdate = 18 May 2016}}
|first1 = E. F. |last1 = Tedesco
|first2 = P. V. |last2 = Noah
|first3 = M. |last3 = Noah
|first4 = S. D. |last4 = Price
|date = October 2004
|title = IRAS Minor Planet Survey V6.0
|url = https://sbnarchive.psi.edu/pds3/iras/IRAS_A_FPA_3_RDR_IMPS_V6_0/data/diamalb.tab
|journal = NASA Planetary Data System
|volume = 12
|pages = IRAS-A-FPA-3-RDR-IMPS-V6.0
|bibcode = 2004PDSS...12.....T
|access-date= 22 October 2019}}
|display-authors = 6
|first1 = Fumihiko |last1 = Usui
|first2 = Daisuke |last2 = Kuroda
|first3 = Thomas G. |last3 = Müller
|first4 = Sunao |last4 = Hasegawa
|first5 = Masateru |last5 = Ishiguro
|first6 = Takafumi |last6 = Ootsubo
|first7 = Daisuke |last7 = Ishihara
|first8 = Hirokazu |last8 = Kataza
|first9 = Satoshi |last9 = Takita
|first10 = Shinki |last10 = Oyabu
|first11 = Munetaka |last11 = Ueno
|first12 = Hideo |last12 = Matsuhara
|first13 = Takashi |last13 = Onaka
|date = October 2011
|title = Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey
|journal = Publications of the Astronomical Society of Japan
|volume = 63
|issue = 5
|pages = 1117–1138
|bibcode = 2011PASJ...63.1117U
|doi = 10.1093/pasj/63.5.1117
|doi-access=
}} ([http://vizier.cfa.harvard.edu/viz-bin/VizieR-5?-source=J/PASJ/63/1117/acua_v1&Num=2140 online], [https://core.ac.uk/download/pdf/43545172.pdf AcuA catalog p. 153])
|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
|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011ApJ...741...90M
|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
|access-date= 18 May 2016}}
|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= 7 December 2016}}
}}
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|2140}}
- {{JPL small body}}
{{Minor planets navigator |2139 Makharadze |number=2140 |2141 Simferopol}}
{{Small Solar System bodies}}
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Category:Discoveries by Lyudmila Chernykh