| 词条 | 2726 Kotelnikov |
| 释义 |
| minorplanet = yes | name = 2726 Kotelnikov | background = #D6D6D6 | image = | image_size = | caption = | discovery_ref = [1] | discoverer = N. Chernykh | discovery_site = {{nowrap|Crimean Astrophysical Obs.}} | discovered = 22 September 1979 | mpc_name = (2726) Kotelnikov | alt_names = {{mp|1979 SE|9}}{{·}}{{mp|1952 BR|1}} {{mp|1955 UK|1}}{{·}}{{mp|1969 RC|1}} {{mp|1972 GJ|1}}{{·}}{{mp|1974 SH|1}} 1974 TN{{·}}A906 QE | pronounced = | named_after = Vladimir Kotelnikov [1] {{small|(Soviet radar astronomer)}} | mp_category = main-belt [1]{{·}}{{small|(outer)}} Koronis [5][6] | orbit_ref = | epoch = 23 March 2018 (JD 2458200.5) | uncertainty = 0 | observation_arc = 63.24 yr (23,100 d) | aphelion = 3.0746 AU | perihelion = 2.6429 AU | semimajor = 2.8588 AU | eccentricity = 0.0755 | period = 4.83 yr (1,765 d) | mean_anomaly = 319.83° | mean_motion = {{Deg2DMS|0.2039|sup=ms}} / day | inclination = 1.5581° | asc_node = 355.71° | arg_peri = 47.597° | mean_diameter = {{val|9.85|ul=km}} {{small|(calculated)}}[5] {{val|10.937|0.207|u=km}}[9][10] | rotation = {{val|4.752|0.0034|ul=h}}[11] 4.9075 h[5] {{val|4.9078|0.0002|u=h}}[13] | albedo = {{val|0.213|0.029}}[9][10] {{val|0.24}} {{small|(assumed)}}[5] | spectral_type = L/S[17]{{·}}S {{small|(SDSS-MFB)}}{{efn|name=SDSS-MFB}}[5] | abs_magnitude = {{val|11.990|0.002}} {{small|(R)}}[11] 12.1[10] {{val|12.17|0.30}}[17] 12.2[5] }}2726 Kotelnikov, provisional designation {{mp|1979 SE|9}}, is a stony Koronian asteroid from the outer regions of the asteroid belt, approximately {{convert|10|km|mi|abbr=off|sigfig=2|sp=us}} in diameter. It was discovered on 22 September 1979, by Soviet astronomer Nikolai Chernykh at the Crimean Astrophysical Observatory in Nauchnij on the Crimean peninsula.[1] The S-type asteroid has a rotation period of 4.91 hours and is a suspected binary system.[5][13] The asteroid was named for Soviet scientist and pioneer in radar astronomy, Vladimir Kotelnikov.[1] Orbit and classificationKotelnikov is a member of the Koronis family ({{small|605}}),[5][6] a very large family of stony asteroids with nearly co-planar ecliptical orbits, named after 158 Koronis.[30]It orbits the Sun in the outer main-belt at a distance of 2.6–3.1 AU once every 4 years and 10 months (1,765 days; semi-major axis of 2.86 AU). Its orbit has an eccentricity of 0.08 and an inclination of 2° with respect to the ecliptic. The asteroid was first observed as {{mp|A906 QE}} at Heidelberg Observatory in August 1906. The body's observation arc begins with a precovery taken at Palomar Observatory in June 1954, or 25 years prior to its official discovery observation at Nauchnij.[1] Physical characteristicsKotelnikov has been characterized as both a common S- and uncommon L-type asteroid by Pan-STARRS{{'}} photometric survey,[17] while in the SDSS-MFB (Masi Foglia Binzel) taxonomy, it is classified as a stony S-type asteroid.[5]{{efn|name=SDSS-MFB}} Rotation periodIn October 2013, a rotational lightcurve of Kotelnikov was obtained from photometric observations in the R-band by astronomers with the Palomar Transient Factory in California. Lightcurve analysis gave a rotation period of 4.752 hours with a brightness variation of 0.26 magnitude ({{small|U=2}}).[11] In March 2015, Swiss and French astronomers René Roy, Raoul Behrend and José De Queiroz measured a period of 4.9078 hours and an amplitude of 0.21 magnitude ({{small|U=2}}). The astronomers noted that Kotelnikov is likely a binary asteroid, yet more observations are required.[13] The Collaborative Asteroid Lightcurve Link does not mention the asteroid's suspected binary status and consolidates a period of 4.9075 hours with an amplitude of 0.21 to 0.26.[5] Diameter and albedoAccording to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Kotelnikov measures 10.937 kilometers in diameter and its surface has an albedo of 0.213,[9][10] while the Collaborative Asteroid Lightcurve Link assumes an albedo of 0.24 and calculates a diameter of 9.85 kilometers based on an absolute magnitude of 12.2.[5] NamingThis minor planet was named after Soviet scientist Vladimir Kotelnikov (1908–2005), who pioneered radar astronomy in the Soviet Union. He was a long-time director of the Institute of Radio-engineering and Electronics and vice-president of the former USSR Academy of Science. The official naming citation was published by the Minor Planet Center on 8 November 1984 ({{small|M.P.C. 9214}}).[41] Notes{{notelist|refs={{efn|name=SDSS-MFB|1=Search for Unusual Spectroscopic Candidates Among 40313 minor planets from the 3rd Release of the Sloan Digital Sky Survey Moving Object Catalog (publication). SDSS-MFB (Masi Foglia Binzel) taxonomy (catalog).}}}} References1. ^1 2 3 4 5 6 {{cite web |title = 2726 Kotelnikov (1979 SE9) |work = Minor Planet Center |url = https://www.minorplanetcenter.net/db_search/show_object?object_id=2726 |accessdate = 26 April 2018}} [1][2][3][4][5][6][7][8][9][10]2. ^1 {{cite web |title = MPC/MPO/MPS Archive |work = Minor Planet Center |url = https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html |accessdate = 26 April 2018}} 3. ^1 2 3 {{cite web |title = Asteroids and comets rotation curves – (2726) Kotelnikov |last = Behrend |first = Raoul |publisher = Geneva Observatory |url = http://obswww.unige.ch/~behrend/page4cou.html#002726 |accessdate = 26 April 2018}} 4. ^1 2 3 {{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 |access-date= 26 April 2018}} 5. ^1 2 {{cite web |title = Small Bodies Data Ferret |work = Nesvorny HCM Asteroid Families V3.0 |url = https://sbntools.psi.edu/ferret/PropertySearch/familyForm.action |accessdate = 26 April 2018}} 6. ^1 {{Cite journal |first1 = D. |last1 = Nesvorný |first2 = M. |last2 = Broz |first3 = V. |last3 = Carruba |date = December 2014 |title = Identification and Dynamical Properties of Asteroid Families |url = https://arxiv.org/pdf/1502.01628.pdf |journal = Asteroids IV |pages = 297–321 |bibcode = 2015aste.book..297N |doi = 10.2458/azu_uapress_9780816532131-ch016 |arxiv = 1502.01628 |access-date= 26 April 2018}} 7. ^1 2 3 4 5 6 7 8 9 10 11 {{cite web |title = LCDB Data for (2726) Kotelnikov |publisher = Asteroid Lightcurve Database (LCDB) |url = http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=2726%7CKotelnikov |accessdate = 26 April 2018}} 8. ^1 2 3 4 {{cite journal |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 = https://arxiv.org/pdf/1109.6407v1.pdf |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= 26 April 2018}} 9. ^1 2 3 {{cite journal |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 = https://arxiv.org/pdf/1504.04041.pdf |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= 26 April 2018}} 10. ^1 2 3 {{cite journal |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 = https://arxiv.org/pdf/1506.00762.pdf |journal = Icarus |volume = 261 |pages = 34–47 |bibcode = 2015Icar..261...34V |doi = 10.1016/j.icarus.2015.08.007 |arxiv = 1506.00762 |access-date= 26 April 2018}} }} External links
5 : Koronis asteroids|Discoveries by Nikolai Chernykh|Minor planets named for people|Named minor planets|Astronomical objects discovered in 1979 |
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