1581 Abanderada

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1581 Abanderada
Discovery [1]
Discovered by M. Itzigsohn
Discovery site La Plata Obs.
Discovery date15 June 1950
Designations
(1581) Abanderada
Named after
 Eva Perón
(First Lady of Argentina) [2]
1950 LA1 ·1927 JD
1929 TY ·1943 EK
1949 FM1 ·1949 FQ
1949 FY ·1966 FP
1975 YH
main-belt  ·(outer)
Themis [3] [4]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc 87.67 yr (32,023 days)
Aphelion 3.5492 AU
Perihelion 2.7650 AU
3.1571 AU
Eccentricity 0.1242
5.61 yr (2,049 days)
40.223°
0° 10m 32.52s / day
Inclination 2.5388°
104.82°
90.216°
Physical characteristics
Dimensions29.508±0.195 km [5]
29.722±0.184 km [6]
31.74±15.01 km [7]
36.49±0.64 km [8]
39.28 km (SIMPS) [3]
19.2 h (very poor)
0.0523 (SIMPS) [3]
0.06±0.07 [7]
0.061±0.002 [8]
0.0916±0.0170 [6]
0.093±0.005 [5]
Tholen = BCU [1] [3]
B–V = 0.659 [1]
U–B = 0.351 [1]
10.85 [1] [3] [6] [8]  ·11.00 [7]

    1581 Abanderada, provisional designation 1950 LA1, 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. [9] The asteroid was named after Eva Perón. [2]

    Contents

    Orbit and classification

    Abanderada is a Themistian asteroid that belongs to the Themis family ( 602 ), [3] [4] a very large family of carbonaceous asteroids, named after 24 Themis. [10] : 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. [1]

    The asteroid was first identified as 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. [9]

    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). [1]

    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 ( U=n.a. ). [11] 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, [5] [6] [7] while the Japanese Akari satellite found a diameter of 36.49 kilometers with an albedo of 0.061. [8]

    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 in January 1953 ( M.P.C. 877). [12]

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    Athalia, provisional designation 1903 ME, is a carbonaceous Themistian asteroid from the outer regions of the asteroid belt, approximately 40 kilometers in diameter. It was discovered on 20 September 1903, by German astronomer Max Wolf at the Heidelberg Observatory in southwest Germany. The asteroid was named after the ancient Judahite queen Athaliah.

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    <span class="mw-page-title-main">1032 Pafuri</span> Dark background asteroid from the outer regions of the asteroid belt

    1032 Pafuri, provisional designation 1924 SA, is a dark background asteroid from the outer regions of the asteroid belt, approximately 65 kilometers in diameter. It was discovered on 30 May 1924, by English astronomer Harry Edwin Wood at the Union Observatory in Johannesburg, South Africa. The asteroid was named for the river in the Pafuri Triangle in South Africa, created by the confluence of the Limpopo and Levubu rivers. The body's spectral type and rotation period are still poorly determined.

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    1074 Beljawskya, provisional designation 1925 BE, is a Themistian asteroid from the outer region of the asteroid belt, approximately 48 kilometers in diameter.

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    1252 Celestia, provisional designation 1933 DG, is a stony asteroid located in the central asteroid belt. It was discovered on 19 February 1933, by astronomer Fred Whipple at the Oak Ridge Observatory operated by the Harvard-Smithsonian Center for Astrophysics in Massachusetts, United States. The S-type asteroid has a rotation period of 10.6 hours and measures approximately 20 kilometers in diameter. It was named after the discoverer's mother, Celestia MacFarland Whipple.

    1240 Centenaria, provisional designation 1932 CD, is a background asteroid from the outer regions of the asteroid belt, approximately 60 kilometers in diameter. It was discovered on 5 February 1932, by astronomer Richard Schorr at the Bergedorf Observatory in Hamburg, Germany. The assumed C-type asteroid has a rotation period of 11.3 hours. It was named for the 100th anniversary of the discovering observatory.

    1295 Deflotte, provisional designation 1933 WD, is a carbonaceous asteroid from the outer regions of the asteroid belt, approximately 48 kilometers in diameter. It was discovered on 25 November 1933, by French astronomer Louis Boyer at the Algiers Observatory in Algeria, North Africa. The asteroid was named after the discoverer's nephew.

    1589 Fanatica, provisional designation 1950 RK, is a stony, Vestian asteroid from the inner regions of the asteroid belt, approximately 11 kilometers in diameter. It was discovered on 13 September 1950, by Argentine astronomer Miguel Itzigsohn at La Plata Astronomical Observatory in La Plata, Argentina. It was named after Eva Perón.

    1284 Latvia, provisional designation 1933 OP, is a rare-type asteroid from the middle region of the asteroid belt, approximately 37 kilometers in diameter. It was discovered on 27 July 1933, by German astronomer Karl Reinmuth at Heidelberg Observatory in southern Germany, and named after the Republic of Latvia.

    <span class="mw-page-title-main">1582 Martir</span> Carbonaceous background asteroid

    1582 Martir, provisional designation 1950 LY, is a carbonaceous background asteroid from the outer regions of the asteroid belt, approximately 37 kilometers in diameter. It was discovered on 15 June 1950, by Argentine astronomer Miguel Itzigsohn at the La Plata Astronomical Observatory in Argentina. The asteroid was named after the First Lady of Argentina, Eva Perón.

    2043 Ortutay, provisional designation 1936 TH, is a dark asteroid from the outer regions of the asteroid belt, approximately 45 kilometers in diameter. The asteroid was discovered by Hungarian astronomer György Kulin at the Konkoly Observatory, Budapest, on 12 November 1936. It was named after Hungarian ethnographer Gyula Ortutay.

    1359 Prieska, provisional designation 1935 OC, is a rare-type carbonaceous asteroid from the outer region of the asteroid belt, approximately 50 kilometers in diameter. It was discovered on 22 July 1935, by English-born South-African astronomer Cyril Jackson at Johannesburg Observatory in South Africa. The asteroid was named after the South African town of Prieska.

    1416 Renauxa, provisional designation 1937 EC, is an Eon asteroid from the outer regions of the asteroid belt, approximately 29 kilometers in diameter. It was discovered on 4 March 1937, by French astronomer Louis Boyer at the Algiers Observatory in Algeria, North Africa. It was named after Joseph Renaux, an astronomer at the discovering observatory.

    1258 Sicilia, provisional designation 1932 PG, is a dark background asteroid from the outer regions of the asteroid belt, approximately 44 kilometers in diameter. It was discovered on 8 August 1932, by astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in southwest Germany. The asteroid was named after the Italian island of Sicily.

    1266 Tone is a dark background asteroid from the outer regions of the asteroid belt, approximately 80 kilometers in diameter. Discovered by astronomer Okuro Oikawa at the Tokyo Observatory in 1927, it was assigned the provisional designation 1927 BD. The asteroid was later named after the Tone River, one of Japan's largest rivers.

    References

    1. 1 2 3 4 5 6 7 8 "JPL Small-Body Database Browser: 1581 Abanderada (1950 LA1)" (2017-06-02 last obs.). Jet Propulsion Laboratory. Archived from the original on 20 August 2020. Retrieved 13 September 2017.
    2. 1 2 3 4 Schmadel, Lutz D. (2007). "(1581) Abanderada". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 125. doi:10.1007/978-3-540-29925-7_1582. ISBN   978-3-540-00238-3.
    3. 1 2 3 4 5 6 7 8 "LCDB Data for (1581) Abanderada". Asteroid Lightcurve Database (LCDB). Retrieved 13 September 2017.
    4. 1 2 "Asteroid 1581 Abanderada – Nesvorny HCM Asteroid Families V3.0". Small Bodies Data Ferret. Retrieved 26 October 2019.
    5. 1 2 3 Masiero, Joseph R.; Grav, T.; Mainzer, A. K.; Nugent, C. R.; Bauer, J. M.; Stevenson, R.; et al. (August 2014). "Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos". The Astrophysical Journal. 791 (2): 11. arXiv: 1406.6645 . Bibcode:2014ApJ...791..121M. doi:10.1088/0004-637X/791/2/121 . Retrieved 13 September 2017.
    6. 1 2 3 4 Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal. 741 (2): 25. arXiv: 1109.6407 . Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90.
    7. 1 2 3 4 Nugent, C. R.; Mainzer, A.; Bauer, J.; Cutri, R. M.; Kramer, E. A.; Grav, T.; et al. (September 2016). "NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos". The Astronomical Journal. 152 (3): 12. arXiv: 1606.08923 . Bibcode:2016AJ....152...63N. doi: 10.3847/0004-6256/152/3/63 .
    8. 1 2 3 4 Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi; et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey". Publications of the Astronomical Society of Japan. 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. (online, AcuA catalog p. 153)
    9. 1 2 "1581 Abanderada (1950 LA1)". Minor Planet Center. Retrieved 13 September 2017.
    10. ↑ Nesvorný, D.; Broz, M.; Carruba, V. (December 2014). "Identification and Dynamical Properties of Asteroid Families". Asteroids IV. pp. 297–321. arXiv: 1502.01628 . Bibcode:2015aste.book..297N. doi:10.2458/azu_uapress_9780816532131-ch016. ISBN   9780816532131.
    11. ↑ Behrend, Raoul. "Asteroids and comets rotation curves – (1581) Abanderada". Geneva Observatory . Retrieved 13 September 2017.
    12. ↑ Schmadel, Lutz D. (2009). "Appendix – Publication Dates of the MPCs". Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008) . Springer Berlin Heidelberg. p.  221. doi:10.1007/978-3-642-01965-4. ISBN   978-3-642-01964-7.
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