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1232 Cortusa
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Background asteroid
December 2018
yes
1232 Cortusa
#D6D6D6
K. Reinmuth
Heidelberg Obs.
10 October 1931
(1232) Cortusa
1931 TF 21930 OH
k ɔr ' tj uː s əCharles Harley Cleaveland (1871) Pronouncing Medical Lexicon, p. 71
Cortusa(flowering plant)
main-belt(outer)background
27 April 2019 (JD 2458600.5)
0
88.16 yr (32,200 d)
3.6109 AU
2.7535 AU
3.1822 AU
0.1347
5.68 yr (2,073 d)
279.34°
0.1736 ms / day
10.362°
261.21°
340.44°
33.13 2.3 km36.367 0.463 km36.60 9.07 km39.17 11.98 km42.015 0.259 km42.20 1.11 km43.27 0.82 km
25.16 0.02 h
0.0720.08330.0850.1200.13390.14
X (SDSS-MOC)
10.2010.310.35
1232 Cortusa, provisional designation 1931 TF 2, is a background asteroid from the outer regions of the asteroid belt, approximately 40 km mi off 2 us in diameter. It was discovered on 10 October 1931, by astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany. The X-type asteroid has a rotation period of 25.2 hours. It was named after the plant Cortusa and indirectly honors astronomer Gustav Stracke.
Orbit and classification
Cortusa is a non-family asteroid from the main belt's background population. It orbits the Sun in the outer main-belt at a distance of 2.8–3.6 AU once every 5 years and 8 months (2,073 days; semi-major axis of 3.18 AU). Its orbit has an eccentricity of 0.13 and an inclination of 10° with respect to the ecliptic. The body's observation arc begins with its first observation as 1930 OH at Johannesburg Observatory in July 1930, or 15 months prior to its official discovery observation at Heidelberg.
Naming
This minor planet was named after the flowering plant Cortusa, a species of plant in the primrose family. The official 1232 naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 114). It honors German astronomer and diligent orbit computer Gustav Stracke (1887–1943), who had asked that no asteroid be named after him. The initials of the asteroids 1227 1227 through 1234 1234, all discovered by Karl Reinmuth, spell out "G. Stracke". In this manner, Reinmuth was able to circumvent Stracke's desire and honor him nevertheless. The asteroid 1019 Strackea was later named after Stracke directly. In the 1990s, astronomer Brian Marsden was also honored by this method, see asteroids 5694 5694 to 5699 5699. The consecutive initial letters of these minor-planet names spell out "MarsdenB".
Reinmuth's flowers
Due to his many discoveries, Karl Reinmuth submitted a large list of 66 newly named asteroids in the early 1930s. The list covered his discoveries with numbers between 1009 (1009) and 1200 (1200). This list also contained a sequence of 28 asteroids, starting with 1054 Forsytia, that were all named after plants, in particular flowering plants (also see list of minor planets named after animals and plants).
Physical characteristics
In the SDSS-based taxonomy, Cortusa is an X-type asteroid.
Rotation period
In August 2004, a rotational lightcurve of Cortusa was obtained from photometric observations by French amateur astronomer Pierre Antonini. Lightcurve analysis gave a rotation period of 25.16 0.02 hours with a brightness amplitude of 0.10 magnitude (U=2). Other period determinations were made by René Roy (<10 h) in December 2006 (U=1), and by the Spanish OBAS group (22.05 h) in June 2016 (U=2-).
Diameter and albedo
According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Cortusa measures between 33.13 and 43.27 kilometers in diameter and its surface has an albedo between 0.07 and 0.14. The Collaborative Asteroid Lightcurve Link derives an albedo of 0.1226 and a diameter of 33.05 kilometers based on an absolute magnitude of 10.3.
References
30em 2018-09-18 last obs.
JPL Small-Body Database Browser: 1232 Cortusa (1931 TF2)
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001232
https://web.archive.org/web/20200918043039/https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001232
dead
18 September 2020
Jet Propulsion Laboratory
15 December 2018
Dictionary of Minor Planet Names – (1232) Cortusa
Schmadel Lutz D.
Springer Berlin Heidelberg
102
2007
978-3-540-00238-3
10.1007/978-3-540-29925-7_1233 (1232) Cortusa
Dictionary of Minor Planet Names – (1234) Elyna
Schmadel Lutz D.
Springer Berlin Heidelberg
102–103
2007
978-3-540-00238-3
10.1007/978-3-540-29925-7_1235 (1234) Elyna
Dictionary of Minor Planet Names – (1054) Forsytia
Schmadel
Lutz D.
Springer Berlin Heidelberg
90
2007
978-3-540-00238-3
10.1007/978-3-540-29925-7_1055
(1054) Forsytia
Dictionary of Minor Planet Names – (5699) Munch
Schmadel Lutz D.
Springer Berlin Heidelberg
483
2007
978-3-540-00238-3
10.1007/978-3-540-29925-7_5391 (5699) Munch
1232 Cortusa (1931 TF2)
Minor Planet Center
https://www.minorplanetcenter.net/db_search/show_object?object_id=1232
15 December 2018
Asteroids and comets rotation curves – (1232) Cortusa
Behrend
Raoul
Geneva Observatory
http://obswww.unige.ch/~behrend/page3cou.html#001232
15 December 2018
23 April 2019
https://web.archive.org/web/20190423121547/http://obswww.unige.ch/~behrend/page3cou.html#001232
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The Astrophysical Journal
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AstDyS-2, Asteroids – Dynamic Site
https://newton.spacedys.com/astdys/index.php?n=1232&pc=1.1.6
14 December 2018
Asteroid 1232 Cortusa
Small Bodies Data Ferret
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J. M. Carvano
P. H. Hasselmann
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T. Mothé-Diniz
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SDSS-based taxonomic classification and orbital distribution of main belt asteroids
https://sbnarchive.psi.edu/pds3/non_mission/EAR_A_I0035_5_SDSSTAX_V1_1/data/sdsstax_ast_table.tab
Astronomy and Astrophysics
510
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2010A&A...510A..43C
10.1051/0004-6361/200913322
30 October 2019 free
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1232
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M. S. Cabrera
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The Astrophysical Journal Letters
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NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos
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NEOWISE Diameters and Albedos V1.0
https://sbnarchive.psi.edu/pds3/non_mission/EAR_A_COMPIL_5_NEOWISEDIAM_V1_0/data/neowise_mainbelt.tab
NASA Planetary Data System
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External links
Asteroid Lightcurve Database (LCDB), query form (info https://web.archive.org/web/20171216050541/http://www.minorplanet.info/lightcurvedatabase.html 16 December 2017 )
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR https://web.archive.org/web/20160729213840/http://obswww.unige.ch/~behrend/page_cou.html 29 July 2016 – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
1232
1231 Auricula 1232 1233 Kobresia
001232
Category:Discoveries by Karl Wilhelm Reinmuth
Category:Named minor planets
19311010