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1205 Ebella
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Main-belt asteroid
the electric car Toyota Urban Cruiser Ebella
October 2019
yes
1205 Ebella
#D6D6D6
6 October 1931
K. Reinmuth
Heidelberg Obs.
(1205) Ebella
1931 TB 11970 JT
Martin Ebell(German astronomer)
main-belt(middle)
4 September 2017 (JD 2458000.5)
0
85.48 yr (31,221 days)
3.2287 AU
1.8411 AU
2.5349 AU
0.2737
4.04 yr (1,474 days)
103.87°
0.2442 ms / day
8.8616°
23.083°
349.24°
5.474 0.283 km6.0 km (est. at 0.20)
0.214 0.026
13.5
1205 Ebella (provisional designation 1931 TB 1) is a relatively eccentric asteroid from the central regions of the asteroid belt, approximately 5.5 kilometers in diameter. It was discovered by astronomer Karl Reinmuth at Heidelberg Observatory on 6 October 1931. The asteroid was named after German astronomer Martin Ebell.
Orbit and classification
Ebella orbits the Sun in the central main-belt at a distance of 1.8–3.2 AU once every 4.04 years (1,474 days). Its orbit has an eccentricity of 0.27 and an inclination of 9° with respect to the ecliptic. As no precoveries were taken and no prior identifications were made, the asteroid's observation arc begins at Heidelberg with its official discovery observation.
Physical characteristics
Diameter and albedo
According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Ebella measures 5.474 kilometers in diameter and its surface has an albedo of 0.214, which is typical for stony S-type asteroids.
Based on a generic magnitude-to-diameter conversion, it measures 6.0 kilometers in diameter using an absolute magnitude of 13.50 with an assumed albedo of 0.20.
Lightcurve
As of 2017, no rotational lightcurve of Ebella has been obtained from photometric observations. The asteroid's rotation period, poles and shape still remain unknown.
Naming
This minor planet was named after Carl Wilhelm Ludwig Martin Ebell (1871–1944) an astronomer from Neuruppin, Germany, who was on the editorial team of the renowned astronomical journal Astronomische Nachrichten. The official naming citation was published by Paul Herget in The Names of the Minor Planets in 1955 (H 112).
References
30em 2017-03-29 last obs.
JPL Small-Body Database Browser: 1205 Ebella (1931 TB1)
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001205
Jet Propulsion Laboratory
5 August 2017
Dictionary of Minor Planet Names – (1205) Ebella
Schmadel Lutz D.
Springer Berlin Heidelberg
101
2007
978-3-540-00238-3
10.1007/978-3-540-29925-7_1206 (1205) Ebella
1205 Ebella (1931 TB1)
Minor Planet Center
https://www.minorplanetcenter.net/db_search/show_object?object_id=1205
5 August 2017
6
Joseph R. Masiero
A. K. Mainzer
T. Grav
J. M. Bauer
R. M. Cutri
J. Dailey
P. R. M. Eisenhardt
R. S. McMillan
T. B. Spahr
M. F. Skrutskie
D. Tholen
R. G. Walker
E. L. Wright
E. DeBaun
D. Elsbury
T. IV Gautier
S. Gomillion
A. Wilkins
November 2011
Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters
http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011ApJ...741...68M
The Astrophysical Journal
741
2
20
2011ApJ...741...68M
10.1088/0004-637X/741/2/68
1109.4096
5 August 2017
Asteroid Size Estimator
CNEOS/JPL
https://cneos.jpl.nasa.gov/tools/ast_size_est.html
5 August 2017
1205
5 August 2017
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
1205
1204 Renzia 1205 1206 Numerowia
001205
Category:Discoveries by Karl Wilhelm Reinmuth
Category:Named minor planets
19311006