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1275 Cimbria
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Main-belt asteroid
October 2019
yes
1275 Cimbria
#D6D6D6
001275-asteroid shape model (1275) Cimbria.png
Modelled shape of Cimbria from its lightcurve
K. Reinmuth
Heidelberg Obs.
30 November 1932
(1275) Cimbria
1932 WG1949 QL 2A914 TG
ˈ s ɪ m b r i əCimbrian
Cimbri(ancient Germanic tribe)
main-belt(middle)Eunomia
4 September 2017 (JD 2458000.5)
0
84.42 yr (30,833 days)
3.1314 AU
2.2301 AU
2.6807 AU
0.1681
4.39 yr (1,603 days)
143.95°
0.2246 ms / day
12.877°
188.56°
196.98°
18.70 4.19 km26.31 0.30 km27.622 0.500 km28.65 4.4 km30.94 4.26 km33.599 0.594 km
5.65 0.05 h5.65454 0.00001 h5.655 0.0023 h
0.0807 0.01060.095 0.0390.1109 0.0440.135 0.0040.141 0.0070.25 0.13
Tholen XXMB–V 0.698U–B 0.304
10.426 0.001 (R)10.7210.7811.07 1.21
1275 Cimbria (prov. designation: 1932 WG) is a Eunomia asteroid from the central regions of the asteroid belt, approximately 27 km mi off 2 us in diameter. It was discovered on 30 November 1932, by astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in southern Germany. The asteroid was named after the Cimbri, an ancient Germanic tribe.
Orbit and classification
Cimbria is a member of the Eunomia family (502), a prominent family of typically stony asteroids and the largest one in the intermediate main belt with more than 5,000 members.
The asteroid orbits the Sun in the central main-belt at a distance of 2.2–3.1 AU once every 4 years and 5 months (1,603 days). Its orbit has an eccentricity of 0.17 and an inclination of 13° with respect to the ecliptic. It was first identified as A914 TG at Simeiz Observatory in October 1914. The body's observation arc begins with its official discovery observation at Heidelberg in 1932.
Naming
This minor planet was named after the Cimbri, an ancient Proto-Germanic tribe that fought the Romans together with the Teutons and the Ambrones. At first victorious, they were destroyed by Gaius Marius in the Cimbrian War (113–101 BC). The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 117).
Physical characteristics
In the Tholen classification, Cimbria is an X-type asteroid, rather than a stony S-type asteroid, which is the overall spectral type for members of the Eunomia family.23
Rotation period
In November and December 2002, two rotational lightcurves of Cimbria were obtained from photometric observations by Italian amateur astronomers Silvano Casulli, Antonio Vagnozzi, Marco Cristofanelli and Marco Paiella. Lightcurve analysis gave a well-defined rotation period of 5.65 hours with a brightness variation of 0.40 and 0.57 magnitude, respectively (U=3/3-). In December 2012, astronomers at the Palomar Transient Factory in California measured a period of 5.655 hours and an amplitude of 0.26 magnitude (U=2).
Poles
The asteroid's lightcurve has also been modeled using photometric data from the Lowell Photometric Database. It gave a concurring period of 5.65454 hours and determined two spin axis of (85.0°, −61.0°) and (271.0°, −31.0°) in ecliptic coordinates (λ, β).
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, Cimbria measures between 18.70 and 33.599 kilometers in diameter and its surface has an albedo between 0.0807 and 0.25.
The Collaborative Asteroid Lightcurve Link adopts the results obtained by IRAS, that is an albedo of 0.1109 and a diameter of 28.65 kilometers based on an absolute magnitude of 10.72.
References
30em 2017-05-01 last obs.
JPL Small-Body Database Browser: 1275 Cimbria (1932 WG)
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001275
Jet Propulsion Laboratory
28 October 2017
Dictionary of Minor Planet Names
https://archive.org/details/dictionaryminorp00schm
limited
Schmadel Lutz D.
Springer Berlin Heidelberg
(1275) Cimbria
105
2007
978-3-540-00238-3
10.1007/978-3-540-29925-7_1276
1275 Cimbria (1932 WG)
Minor Planet Center
https://www.minorplanetcenter.net/db_search/show_object?object_id=1275
28 October 2017
Asteroids and comets rotation curves – (1275) Cimbria
Behrend
Raoul
Geneva Observatory
http://obswww.unige.ch/~behrend/page3cou.html#001275
28 October 2017
23 April 2019
https://web.archive.org/web/20190423121547/http://obswww.unige.ch/~behrend/page3cou.html#001275
dead
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Joseph R. Masiero
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A. K. Mainzer
C. R. Nugent
J. M. Bauer
R. Stevenson
S. Sonnett
August 2014
Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos
http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2014ApJ...791..121M
The Astrophysical Journal
791
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11
2014ApJ...791..121M
10.1088/0004-637X/791/2/121
1406.6645
28 October 2017
Asteroid 1275 Cimbria – Nesvorny HCM Asteroid Families V3.0
Small Bodies Data Ferret
https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=1275+Cimbria#Asteroid%201275%20CimbriaEAR-A-VARGBDET-5-NESVORNYFAM-V3.0
26 October 2019
https://web.archive.org/web/20201004061738/https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=1275+Cimbria#Asteroid%201275%20CimbriaEAR-A-VARGBDET-5-NESVORNYFAM-V3.0
4 October 2020
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D. Nesvorný
M. Broz
V. Carruba
December 2014
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Asteroids IV
297–321
2015aste.book..297N
10.2458/azu_uapress_9780816532131-ch016
1502.01628
9780816532131
1275
28 October 2017
6
Joseph R. Masiero
A. K. Mainzer
T. Grav
J. M. Bauer
R. M. Cutri
C. Nugent
M. S. Cabrera
November 2012
Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids
http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012ApJ...759L...8M
The Astrophysical Journal Letters
759
1
5
2012ApJ...759L...8M
10.1088/2041-8205/759/1/L8
1209.5794
28 October 2017
6
C. R. Nugent
A. Mainzer
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E. A. Kramer
T. Grav
J. Masiero
S. Sonnett
E. L. Wright
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NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos
The Astronomical Journal
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2016AJ....152...63N
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1606.08923
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Fumihiko Usui
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Thomas G. Müller
Sunao Hasegawa
Masateru Ishiguro
Takafumi Ootsubo
Daisuke Ishihara
Hirokazu Kataza
Satoshi Takita
Shinki Oyabu
Munetaka Ueno
Hideo Matsuhara
Takashi Onaka
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Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey
Publications of the Astronomical Society of Japan
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5
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(online, AcuA catalog p. 153)
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M. Noah
S. D. Price
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IRAS Minor Planet Survey V6.0
https://sbnarchive.psi.edu/pds3/iras/IRAS_A_FPA_3_RDR_IMPS_V6_0/data/diamalb.tab
NASA Planetary Data System
12
IRAS-A-FPA-3-RDR-IMPS-V6.0
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22 October 2019
6
A. Mainzer
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J. Masiero
E. Hand
J. Bauer
D. Tholen
R. S. McMillan
T. Spahr
R. M. Cutri
E. Wright
J. Watkins
W. Mo
C. Maleszewski
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NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results
The Astrophysical Journal
741
2
25
2011ApJ...741...90M
10.1088/0004-637X/741/2/90
1109.6407
6
Adam Waszczak
Chan-Kao Chang
Eran O. Ofek
Russ Laher
Frank Masci
David Levitan
Jason Surace
Yu-Chi Cheng
Wing-Huen Ip
Daisuke Kinoshita
George Helou
Thomas A. Prince
Shrinivas Kulkarni
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Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry
http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015AJ....150...75W
The Astronomical Journal
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3
35
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28 October 2017
J. Durech
J. Hanus
D. Oszkiewicz
R. Vanco
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http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2016A&A...587A..48D
Astronomy and Astrophysics
587
6
2016A&A...587A..48D
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1601.02909
28 October 2017
6
Peter Veres
Robert Jedicke
Alan Fitzsimmons
Larry Denneau
Mikael Granvik
Bryce Bolin
Serge Chastel
Richard J. Wainscoat
William S. Burgett
Kenneth C. Chambers
Heather Flewelling
Nick Kaiser
Eugen A. Magnier
Jeff S. Morgan
Paul A. Price
John L. Tonry
Christopher Waters
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External links
Lightcurve Database Query (LCDB), at www.minorplanet.info
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 – Geneva Observatory, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
1275
1274 Delportia 1275 1276 Ucclia
001275
Category:Discoveries by Karl Wilhelm Reinmuth
Category:Named minor planets
001275
19321130