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词条 1088 Mitaka
释义

  1. Orbit and classification

  2. Physical characteristics

      Rotation period    Modeled lightcurves    Diameter and albedo  

  3. Naming

  4. References

  5. External links

{{Infobox planet
| minorplanet = yes
| name = 1088 Mitaka
| background = #D6D6D6
| image =
| image_size =
| caption = A three-dimensional model of 1088 Mitaka based on its light curve.
| discovery_ref =  
| discoverer = O. Oikawa
| discovery_site = Tokyo Astronomical Obs.
| discovered = 17 November 1927
| mpc_name = (1088) Mitaka
| alt_names = 1927 WA{{·}}1942 FR
{{mp|1953 VW|3}}{{·}}1971 BE
A917 RA
| pronounced =
| named_after = Mitaka [2] {{small|(Japanese village)}}
| mp_category = main-belt{{·}}{{small|(inner)}} [3]
background [4]
| orbit_ref =  
| epoch = 4 September 2017 (JD 2458000.5)
| uncertainty = 0
| observation_arc = 88.22 yr (32,224 days)
| aphelion = 2.6328 AU
| perihelion = 1.7722 AU
| semimajor = 2.2025 AU
| eccentricity = 0.1954
| period = 3.27 yr (1,194 days)
| mean_anomaly = 200.92°
| mean_motion = {{Deg2DMS|0.3015|sup=ms}} / day
| inclination = 7.6514°
| asc_node = 54.495°
| arg_peri = 319.50°
| dimensions = {{val|11.33|2.51}} km[6]
{{val|13.35|0.75}} km[7]
{{val|15.137|0.131}} km[8]
{{val|15.957|0.030}} km[9]
{{val|16.016|}} km[10]
16.02 km {{small|(taken)}}[3]
| rotation = {{val|3.027|0.003}} h[12]
{{val|3.0353|0.0005}} h[13]
{{val|3.035377|}} h[14]
{{val|3.035378|0.000005}} h[15]
{{val|3.0354|0.0002}} h[16]
{{val|3.0361|0.0007}} h[16]
{{val|3.049|0.005}} h[18]
| albedo = {{val|0.1549|}}[10]
{{val|0.1588|0.0204}}[9]
{{val|0.173|0.025}}[8]
{{val|0.276|0.034}}[7]
{{val|0.37|0.16}}[6]
| spectral_type = Tholen {{=}} S 
SMASS {{=}} S [3]
B–V {{=}} 0.947 
U–B {{=}} 0.594 
| abs_magnitude = 11.39[7]{{·}}{{val|11.41|0.20}}[31]{{·}}11.55[6]{{·}}11.62[3][9]{{·}}{{val|11.62|0.08}}[10][18]
}}1088 Mitaka, provisional designation {{mp|1927 WA}}, is a stony background asteroid from the inner regions of the asteroid belt, approximately 15 kilometers in diameter. It was discovered on 17 November 1927, by Japanese astronomer Okuro Oikawa at the old Tokyo Astronomical Observatory in Japan.[37] The asteroid was named after the Japanese village of Mitaka.[2]

Orbit and classification

Mitaka is a non-family asteroid of the main belt's background population.[4] It orbits the Sun in the inner asteroid belt at a distance of 1.8–2.6 AU once every 3 years and 3 months (1,194 days). Its orbit has an eccentricity of 0.20 and an inclination of 8° with respect to the ecliptic.

The asteroid was first identified as {{mp|A917 RA}} at Simeiz Observatory in September 1917. The body's observation arc begins at Tokyo in December 1927, one month after its official discovery observation.[37]

Physical characteristics

Mitaka is a common stony S-type asteroid in the Tholen and SMASS classification.[3]

Rotation period

Several rotational lightcurves of Mitaka have been obtained from photometric observations since 1989.[12][13][16][18] Analysis of the best rated lightcurve by French amateur astronomer Pierre Antonini gave a rotation period of 3.0361 hours with a consolidated brightness variation of 0.23 to 0.62 magnitude ({{small|U=3}}).[3][16]

Modeled lightcurves

In 2009 and 2011, modelling of Mitaka{{'}}s lightcurve using photometric data from the US Naval Observatory, the Uppsala Asteroid Photometric Catalogue (UAPC), the Palmer Divide Observatory's archive, the Palomar Transient Factory survey, and from individual observers, gave a concurring rotation period of 3.035377 and 3.035378 hours.[14][15] The modeled lightcurves also gave a spin axis of (115.0°, 46.0°) and (278.0°, −72.0°),[14] as well as (280.0°, −71.0°) in ecliptic coordinates (λ, β).[15]

Diameter and albedo

According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Mitaka measures between 11.33 and 16.016 kilometers in diameter and its surface has an albedo between 0.1549 and 0.37.[6][7][8][9][10]

The Collaborative Asteroid Lightcurve Link adopts Petr Pravec's revised WISE results with an albedo of 0.1549 and takes a diameter of 16.02 kilometers based on an absolute magnitude of 11.62.[3]

Naming

This minor planet was named after the Japanese village of Mitaka, where the discovering Tokyo Astronomical Observatory was located. Nowadays the city of Mitaka hosts the headquarters of the National Astronomical Observatory of Japan with the Tokyo Photoelectric Meridian Circle, public relation and data centers, and several telescopes. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 ({{small|H 103}}).[2]

References

1. ^1 2 3 {{cite book |title = Dictionary of Minor Planet Names – (1088) Mitaka |last = Schmadel | first = Lutz D. |publisher = Springer Berlin Heidelberg |page = 93 |date = 2007 |isbn = 978-3-540-00238-3 |doi = 10.1007/978-3-540-29925-7_1089 |chapter = (1088) Mitaka }}
2. ^1 2 {{cite web |title = 1088 Mitaka (1927 WA) |work = Minor Planet Center |url = http://www.minorplanetcenter.net/db_search/show_object?object_id=1088 |accessdate = 27 September 2017}}
3. ^1 2 3 4 {{cite web |title = Asteroids and comets rotation curves – (1088) Mitaka |last = Behrend |first = Raoul |publisher = Geneva Observatory |url = http://obswww.unige.ch/~behrend/page3cou.html#001088 |accessdate = 27 September 2017}}
4. ^1 2 3 {{cite journal |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= 27 September 2017}}
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 = 25 September 2017}}
6. ^1 2 3 4 5 6 7 {{cite web |title = LCDB Data for (1088) Mitaka |publisher = Asteroid Lightcurve Database (LCDB) |url = http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=1088%7CMitaka |accessdate = 27 September 2017}}
7. ^1 2 3 4 {{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= 27 September 2017}}
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9. ^1 2 3 4 {{cite journal |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 |url = http://pasj.oxfordjournals.org/content/63/5/1117.full.pdf+html |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 |access-date= 27 September 2017}}
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[1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]

}}

External links

  • 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 (1)-(5000) – Minor Planet Center
  • {{JPL small body}}
{{Minor planets navigator |1087 Arabis |number=1088 |1089 Tama}}{{Small Solar System bodies}}{{DEFAULTSORT:Mitaka}}

7 : Background asteroids|Discoveries by Okuro Oikawa|Minor planets named for places|Named minor planets|S-type asteroids (Tholen)|S-type asteroids (SMASS)|Astronomical objects discovered in 1927
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