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词条 5481 Kiuchi
释义

  1. Family and orbit

  2. Naming

  3. Binary asteroid

      Satellite    Primary  

  4. Notes

  5. References

  6. External links

{{Infobox planet
| minorplanet = yes
| name = 5481 Kiuchi
| background = #D6D6D6
| image =
| image_size =
| caption =
| discovery_ref =  
| discovered = 15 February 1990
| discoverer = K. Endate
K. Watanabe
| discovery_site = Kitami Obs.
| mpc_name = (5481) Kiuchi
| alt_names = 1990 CH{{·}}1970 SR
| pronounced =
| named_after = Tsuruhiko Kiuchi
{{small|(Japanese amateur astronomer)}}[2]
| mp_category = main-belt{{·}}Vesta [3]
| orbit_ref =  
| epoch = 4 September 2017 (JD 2458000.5)
| uncertainty = 0
| observation_arc = 46.14 yr (16,851 days)
| aphelion = 2.4858 AU
| perihelion = 2.1936 AU
| semimajor = 2.3397 AU
| eccentricity = 0.0624
| period = 3.58 yr (1,307 days)
| mean_anomaly = 194.33°
| mean_motion = {{Deg2DMS|0.2754|sup=ms}} / day
| inclination = 5.9569°
| asc_node = 326.10°
| arg_peri = 250.69°
| satellites = 1 {{small|(Ds/Dp 0.33, P: 20.90 h)}}[5]
| mean_diameter = {{val|3.86|ul=km}} {{small|(calculated)}}[6]
| rotation = {{val|3.6196|0.0002|ul=h}}[5][8]
| albedo = 0.40 {{small|(assumed)}}[6]
| spectral_type = V [6][11]
| abs_magnitude = {{val|12.98|0.1}} {{small|(R)}}[5]{{·}}13.4{{·}}{{val|13.676|0.062}}[6][15]{{·}}{{val|13.73|0.29}}[11]
}}5481 Kiuchi, provisional designation {{mp|1990 CH}}, is a bright binary[5] Vestian asteroid from the inner regions of the asteroid belt, approximately {{convert|4|km|mi|abbr=off|sp=us}} in diameter. It was discovered on 15 February 1990, by Japanese astronomers Kin Endate and Kazuro Watanabe at Kitami Observatory on Hokkaidō, Japan, and named after their college Tsuruhiko Kiuchi.[2][19] The V-type asteroid has a rotation period of 3.6 hours.[6]

Family and orbit

Kiuchi is a bright core member of the Vesta family,[3] one of the main-belt's largest families. It orbits the Sun in the inner main-belt at a distance of 2.2–2.5 AU once every 3 years and 7 months (1,307 days). Its orbit has an eccentricity of 0.06 and an inclination of 6° with respect to the ecliptic. It was first identified as {{mp|1970 SR}} at Crimea–Nauchnij in 1970, extending the body's observation arc by 20 years prior to its official discovery observation at Kitami.[19]

Naming

This minor planet was named in honor of Japanese amateur astronomer and discoverer of comets, Tsuruhiko Kiuchi (born 1954), who is known for the recovery of the periodic Perseid Comet Swift–Tuttle, a previously lost comet (also see naming citations for {{MoMP|5035|(5035) Swift}} and {{MoMP|5036|(5036 Tuttle)}}. Based on a prediction by Brian Marsden, Kiuchi made this recovery in 1992, only using binoculars.[2] The approved naming citation was published by the Minor Planet Center on 1 September 1993 ({{small|M.P.C. 22510}}).[25]

Binary asteroid

Satellite

In March 2008, a lightcurve of Kiuchi was obtained from photometric observations by astronomers Peter Kušnirák and Petr Pravec at Ondřejov Observatory in the Czech Republic, by Julian Oey at Leura Observatory, Australia, by Robert Stephens at Goat Mountain, California, by Mark Husárik at Skalnaté pleso Observatory, Slovakia, and by Judit Györgyey Ries at McDonald Observatory, Texas.

These photometric observations revealed, that a Kiuchi is a synchronous binary asteroid with a minor-planet moon orbiting it every 20.90 hours based on mutual eclipsing and occultation events. The satellite's diameter is about a third of that of Kiuchi, which translates into 1.3 kilometers (secondary-to-primary mean-diameter ratio of {{val|0.33|0.02}}).[5]

Primary

According to the surveys carried out by PanSTARRS, Kiuchi is a bright V-type asteroid.[11] The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.40 and calculates a diameter of 3.86 kilometers, using an absolute magnitude of 13.676 from Petr Pravec's revised WISE data.[6]

Kiuchi itself has a rotation period of {{val|3.6196|0.0002}} hours with a small brightness variation of 0.1 magnitude, indicating a nearly spheroidal shape ({{small|U=n.a.}}).[5] Photometric follow-up observations by Petr Pravec confirmed the results in 2013 and 2016, giving a period of 3.6198 and 3.6196 hours with an amplitude of 0.08 and 0.1 magnitude, and an orbital period for the satellite of 20.9 and 20.9062 hours, respectively ({{small|U=3/n.a.}}).[8]{{efn|name=LCDB-Prave-2013}}

Notes

{{notelist|refs={{efn|name=LCDB-Prave-2013|1=Pravec (2013) web: rotation period {{val|3.6198|0.0003}} hours with a brightness amplitude of {{val|0.08}} mag. Summary figures for (5481) Kiuchi at Collaborative Asteroid Lightcurve Link (CALL)}}

}}

References

1. ^1 2 3 {{cite book |title = Dictionary of Minor Planet Names – (5481) Kiuchi |last = Schmadel | first = Lutz D. |publisher = Springer Berlin Heidelberg |page = 468 |date = 2007 |isbn = 978-3-540-00238-3 |doi = 10.1007/978-3-540-29925-7_5245 |chapter = (5481) Kiuchi }}
2. ^1 2 {{cite web |title = 5481 Kiuchi (1990 CH) |work = Minor Planet Center |url = http://www.minorplanetcenter.net/db_search/show_object?object_id=5481 |accessdate = 20 March 2017}}
3. ^1 {{cite web |title = MPC/MPO/MPS Archive |work = Minor Planet Center |url = http://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html |accessdate = 20 March 2017}}
4. ^1 2 {{cite web |title = Asteroid (5481) Kiuchi – Proper elements |publisher = AstDyS-2, Asteroids – Dynamic Site |url = http://hamilton.dm.unipi.it/astdys/index.php?n=5481&pc=1.1.6 |accessdate = 23 July 2018}}
5. ^1 2 3 4 5 6 {{cite web |title = LCDB Data for (5481) Kiuchi |publisher = Asteroid Lightcurve Database (LCDB) |url = http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=5481%7CKiuchi |accessdate = 20 March 2017}}
6. ^1 2 3 4 5 6 {{Cite journal |first1 = P. |last1 = Kusnirak |first2 = P. |last2 = Pravec |first3 = J. |last3 = Oey |first4 = R. |last4 = Stephens |first5 = M. |last5 = Husarik |first6 = J. |last6 = Ries |date = April 2008 |title = (5481) Kiuchi |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2008CBET.1339....1K |journal = Central Bureau Electronic Telegrams |volume = 1339 |issue = 1339 |pages = 1 |bibcode = 2008CBET.1339....1K |access-date= 20 March 2017}}
7. ^1 2 {{Cite journal |display-authors = 6 |first1 = P. |last1 = Pravec |first2 = P. |last2 = Scheirich |first3 = P. |last3 = Kusnirák |first4 = K. |last4 = Hornoch |first5 = A. |last5 = Galád |first6 = S. P. |last6 = Naidu |first7 = D. P. |last7 = Pray |first8 = J. |last8 = Világi |first9 = S. |last9 = Gajdos |first10 = L. |last10 = Kornos |first11 = Yu. N. |last11 = Krugly |first12 = W. R. |last12 = Cooney |first13 = J. |last13 = Gross |first14 = D. |last14 = Terrell |first15 = N. |last15 = Gaftonyuk |first16 = J. |last16 = Pollock |first17 = M. |last17 = Husárik |first18 = V. |last18 = Chiorny |first19 = R. D. |last19 = Stephens |first20 = R. |last20 = Durkee |first21 = V. |last21 = Reddy |first22 = R. |last22 = Dyvig |first23 = J. |last23 = Vrastil |first24 = J. |last24 = Zizka |first25 = S. |last25 = Mottola |first26 = S. |last26 = Hellmich |first27 = J. |last27 = Oey |first28 = V. |last28 = Benishek |first29 = A. |last29 = Kryszczynska |first30 = D. |last30 = Higgins |first31 = J. |last31 = Ries |first32 = F. |last32 = Marchis |first33 = M. |last33 = Baek |first34 = B. |last34 = Macomber |first35 = R. |last35 = Inasaridze |first36 = O. |last36 = Kvaratskhelia |first37 = V. |last37 = Ayvazian |first38 = V. |last38 = Rumyantsev |first39 = G. |last39 = Masi |first40 = F. |last40 = Colas |first41 = J. |last41 = Lecacheux |first42 = R. |last42 = Montaigut |first43 = A. |last43 = Leroy |first44 = P. |last44 = Brown |first45 = Z. |last45 = Krzeminski |first46 = I. |last46 = Molotov |first47 = D. |last47 = Reichart |first48 = J. |last48 = Haislip |first49 = A. |last49 = LaCluyze |date = March 2016 |title = Binary asteroid population. 3. Secondary rotations and elongations |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2016Icar..267..267P |journal = Icarus |volume = 267 |pages = 267–295 |bibcode = 2016Icar..267..267P |doi = 10.1016/j.icarus.2015.12.019 |access-date= 20 March 2017}}
8. ^1 {{Cite journal |first1 = Petr |last1 = Pravec |first2 = Alan W. |last2 = Harris |first3 = Peter |last3 = Kusnirák |first4 = Adrián |last4 = Galád |first5 = Kamil |last5 = Hornoch |date = September 2012 |title = Absolute magnitudes of asteroids and a revision of asteroid albedo estimates from WISE thermal observations |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012Icar..221..365P |journal = Icarus |volume = 221 |issue = 1 |pages = 365–387 |bibcode = 2012Icar..221..365P |doi = 10.1016/j.icarus.2012.07.026 |access-date= 20 March 2017}}
9. ^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 = 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= 20 March 2017}}
[1][2][3][4][5][6][7][8][9]

}}

External links

  • (5481) Kiuchi at johnstonsarchive, Robert Johnston
  • Asteroids with Satellites, Robert Johnston, johnstonsarchive.net
  • Asteroid Lightcurve Database (LCDB), query form (info)
  • [https://books.google.com/books?id=aeAg1X7afOoC&pg Dictionary of Minor Planet Names], Google books
  • Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
  • Discovery Circumstances: Numbered Minor Planets (5001)-(10000) – Minor Planet Center
  • {{AstDys|5481}}
  • {{JPL small body}}
{{Use dmy dates|date=July 2018}}{{Minor planets navigator |(5480) 1989 YK8 |number=5481 |(5482) 1990 DX}}{{Small Solar System bodies}}{{DEFAULTSORT:Kiuchi}}

7 : Vesta asteroids|Discoveries by Kin Endate|Discoveries by Kazuro Watanabe|Minor planets named for people|Named minor planets|Binary asteroids|Astronomical objects discovered in 1990
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