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词条 1581 Abanderada
释义

  1. Orbit and classification

  2. Physical characteristics

      Lightcurves    Diameter and albedo  

  3. Naming

  4. References

  5. External links

{{Infobox planet
| minorplanet = yes
| name = 1581 Abanderada
| background = #D6D6D6
| image =
| image_size =
| caption =
| discovery_ref =  
| discoverer = M. Itzigsohn
| discovery_site = La Plata Obs.
| discovered = 15 June 1950
| mpc_name = (1581) Abanderada
| alt_names = {{mp|1950 LA|1}}{{·}}1927 JD
1929 TY{{·}}1943 EK
{{mp|1949 FM|1}}{{·}}1949 FQ
1949 FY{{·}}1966 FP
1975 YH
| pronounced =
| named_after = Eva Perón
{{nowrap|{{small|(First Lady of Argentina)}}[2]}}
| mp_category = main-belt{{·}}{{small|(outer)}}
Themis [3][4]
| orbit_ref =  
| epoch = 4 September 2017 (JD 2458000.5)
| uncertainty = 0
| observation_arc = 87.67 yr (32,023 days)
| aphelion = 3.5492 AU
| perihelion = 2.7650 AU
| semimajor = 3.1571 AU
| eccentricity = 0.1242
| period = 5.61 yr (2,049 days)
| mean_anomaly = 40.223°
| mean_motion = {{Deg2DMS|0.1757|sup=ms}} / day
| inclination = 2.5388°
| asc_node = 104.82°
| arg_peri = 90.216°
| dimensions = {{val|29.508|0.195}} km[6]
{{val|29.722|0.184}} km[7]
{{val|31.74|15.01}} km[8]
{{val|36.49|0.64}} km[9]
39.28 km {{small|(SIMPS)}}[3]
| rotation = 19.2 h {{small|(very poor)}}
| albedo = 0.0523 {{small|(SIMPS)}}[3]
{{val|0.06|0.07}}[8]
{{val|0.061|0.002}}[9]
{{val|0.0916|0.0170}}[7]
{{val|0.093|0.005}}[6]
| spectral_type = Tholen {{=}} BCU [3]
B–V {{=}} 0.659 
U–B {{=}} 0.351 
| abs_magnitude = 10.85[3][7][9]{{·}}11.00[8]
}}1581 Abanderada, provisional designation {{mp|1950 LA|1}}, is a dark Themistian asteroid from the outer regions of the asteroid belt, approximately 35 kilometers in diameter. It was discovered on 15 June 1950, by Argentine astronomer Miguel Itzigsohn at the La Plata Astronomical Observatory in La Plata, Argentina.[25] The asteroid was named after Eva Perón.[2]

Orbit and classification

Abanderada is a Themistian asteroid that belongs to the Themis family ({{small|602}}),[3][4] a very large family of carbonaceous asteroids, named after 24 Themis.[29]{{rp|23}} It orbits the Sun in the outer main-belt at a distance of 2.8–3.5 AU once every 5 years and 7 months (2,049 days). Its orbit has an eccentricity of 0.12 and an inclination of 3° with respect to the ecliptic.

The asteroid was first identified as {{mp|1927 JD}} at Simeiz Observatory in May 1927. The body's observation arc begins with a precovery image taken at Lowell Observatory in September 1929, or almost 21 years prior to its official discovery observation at La Plata.[25]

Physical characteristics

In the Tholen classification, the asteroid's spectral type is ambiguous. It is closest to a bright carbonaceous B-type and somewhat similar to the common C-type asteroids. Tholen has also flagged the asteroid's spectra as "unusual" (BCU).

Lightcurves

In March 2011, a rotational lightcurve of Abanderada was obtained from photometric observations by French amateur astronomers Pierre Antonini. The lightcurve with a period of 19.2 hours was later retracted due to its poor quality ({{small|U=n.a.}}).[33] As of 2017, the body's effective rotation period, poles and shape remain unknown.[3]

Diameter and albedo

According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Abanderada measures between 29.508 and 31.74 kilometers in diameter and its surface has an albedo between 0.06 and 0.093,[6][7][8] while the Japanese Akari satellite found a diameter of 36.49 kilometers with an albedo of 0.061.[9]

The Collaborative Asteroid Lightcurve Link adopts the results obtained by the Infrared Astronomical Satellite, that is, an albedo of 0.0523 and a diameter of 39.28 kilometers based on an absolute magnitude of 10.85.[3]

Naming

This minor planet was named in after Eva Perón (1919–1952), wife of President Juan Perón (1895–1974) of Argentina. The name "Abanderada" may be translated from Spanish as "woman with a banner"—an appellation frequently used in reference to her as a crusader for social and political change.[2]

The discoverer also named the asteroids 1569 Evita, 1582 Martir, 1588 Descamisada and 1589 Fanatica in tribute to Eva Perón.[2] The official naming citation was published by the Minor Planet Center before November 1979 ({{small|M.P.C. 877}}).[42]

References

1. ^1 2 3 4 {{cite book |title = Dictionary of Minor Planet Names – (1581) Abanderada |last = Schmadel | first = Lutz D. |publisher = Springer Berlin Heidelberg |page = 125 |date = 2007 |isbn = 978-3-540-00238-3 |doi = 10.1007/978-3-540-29925-7_1582 |chapter = (1581) Abanderada }}
2. ^1 2 {{cite web |title = 1581 Abanderada (1950 LA1) |work = Minor Planet Center |url = http://www.minorplanetcenter.net/db_search/show_object?object_id=1581 |accessdate = 13 September 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 = 13 September 2017}}
4. ^1 {{cite web |title = Asteroids and comets rotation curves – (1581) Abanderada |last = Behrend |first = Raoul |publisher = Geneva Observatory |url = http://obswww.unige.ch/~behrend/page4cou.html#001581 |accessdate = 13 September 2017}}
5. ^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= 13 September 2017}}
6. ^1 2 3 4 5 6 7 8 {{cite web |title = LCDB Data for (1581) Abanderada |publisher = Asteroid Lightcurve Database (LCDB) |url = http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=1581%7CAbanderada |accessdate = 13 September 2017}}
7. ^1 2 3 4 {{cite journal |display-authors = 6 |first1 = C. R. |last1 = Nugent |first2 = A. |last2 = Mainzer |first3 = J. |last3 = Bauer |first4 = R. M. |last4 = Cutri |first5 = E. A. |last5 = Kramer |first6 = T. |last6 = Grav |first7 = J. |last7 = Masiero |first8 = S. |last8 = Sonnett |first9 = E. L. |last9 = Wright |date = September 2016 |title = NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2016AJ....152...63N |journal = The Astronomical Journal |volume = 152 |issue = 3 |page = 12 |bibcode = 2016AJ....152...63N |doi = 10.3847/0004-6256/152/3/63 |arxiv = 1606.08923 |access-date= 13 September 2017}}
8. ^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= 13 September 2017}}
9. ^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 |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 }}
10. ^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 = 13 September 2017}}
11. ^1 {{Cite book |first1 = D. |last1 = Nesvorný |first2 = M. |last2 = Broz |first3 = V. |last3 = Carruba |date = December 2014 |title = Identification and Dynamical Properties of Asteroid Families |journal = Asteroids IV |pages = 297–321 |bibcode = 2015aste.book..297N |doi = 10.2458/azu_uapress_9780816532131-ch016 |arxiv = 1502.01628 |isbn = 9780816532131 }}
[1][2][3][4][5][6][7][8][9][10][11]

}}

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 |1580 Betulia |number=1581 |1582 Martir}}{{Small Solar System bodies}}{{DEFAULTSORT:Abanderada}}

6 : Themis asteroids|Discoveries by Miguel Itzigsohn|Minor planets named for people|Named minor planets|BCU-type asteroids (Tholen)|Astronomical objects discovered in 1950
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