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1505 Koranna
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Asteroid
Koranna
October 2019
yes
1505 Koranna
#D6D6D6
C. Jackson
Johannesburg Obs.
21 April 1939
(1505) Koranna
1935 MD1939 HH1948 MB1958 UM
Koranna people(native South African people)
main-belt(middle)Eunomiabackground
4 September 2017 (JD 2458000.5)
0
82.26 yr (30,045 days)
3.0150 AU
2.3037 AU
2.6593 AU
0.1337
4.34 yr (1,584 days)
15.932°
0.2273 ms / day
14.471°
248.28°
342.44°
20.46 0.76 km20.88 2.1 km21.00 km (derived)22.277 0.690 km22.83 0.88 km
4.45 0.15 hlcdb-Garceran-20134.451 0.001 h4.452 0.0011 h
0.082 0.0070.0929 0.0220.107 0.0160.1209 (derived)0.127 0.021
S (assumed)
11.197 0.002 (R)11.3011.47 0.6311.60
1505 Koranna (provisional designation 1939 HH) is a stony Eunomia asteroid from the central regions of the asteroid belt, approximately 21 kilometers in diameter. It was discovered on 21 April 1939, by South African astronomer Cyril Jackson at the Union Observatory in Johannesburg. The asteroid was named for the native Koranna people of South Africa.
Orbit and classification
Koranna is a non-family asteroid of the main belt's background population when applying the hierarchical clustering method to its proper orbital elements. The asteroid has also been classified as a member of the Eunomia family (502), a prominent family of stony S-type asteroid and the largest one in the intermediate main belt with more than 5,000 members.
It orbits the Sun in the central main belt at a distance of 2.3–3.0 AU once every 4 years and 4 months (1,584 days). Its orbit has an eccentricity of 0.13 and an inclination of 14° with respect to the ecliptic. The asteroid was first identified in June 1935 as 1935 MD at Simeiz Observatory on Crimea, where the body's observation arc begins the following month in July 1935.
Physical characteristics
Koranna is an assumed stony S-type asteroid.
Rotation period
Between 2088 and 2013, three rotational lightcurves of Koranna have been obtained from photometric observations. Lightcurve analysis gave a rotation period of 4.45, 4.451 and 4.452 hours with a brightness variation of 0.70, 0.55 and 0.53, respectively magnitude (U=2+/3/2).lcdb-Garceran-2013 A high brightness amplitude typically indicates that the body has an elongated, non-spherical shape.
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, Koranna measures between 20.46 and 22.83 kilometers in diameter and its surface has an albedo between 0.082 and 0.127. The Collaborative Asteroid Lightcurve Link derives an albedo of 0.1209 and a diameter of 21.00 kilometers based on an absolute magnitude of 11.3.
Naming
This minor planet was named after the native Koranna people, better known as the Griqua people of South Africa. The tribe of wandering San people (Bushman) lives in the southern part of the Kalahari Desert in southern Africa. The official 1505 naming citation was published by the Minor Planet Center in April 1953 (M.P.C. 909).
Notes
lcdb-Garceran-2013 Garceran (2013) web: rotation period 4.45 0.15 hours with a brightness amplitude of 0.70 mag. Summary figures for (1505) Koranna at LCDB
References
30em 2017-09-28 last obs.
JPL Small-Body Database Browser: 1505 Koranna (1939 HH)
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001505
Jet Propulsion Laboratory
18 October 2017
Dictionary of Minor Planet Names – (1505) Koranna
Schmadel Lutz D.
Springer Berlin Heidelberg
120
2007
978-3-540-00238-3
10.1007/978-3-540-29925-7_1506 (1505) Koranna
1505 Koranna (1939 HH)
https://www.minorplanetcenter.net/db_search/show_object?object_id=1505
Minor Planet Center
25 October 2025
live
Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008)
2009
https://archive.org/details/dictionaryminorp2008schm
limited
Appendix – Publication Dates of the MPCs
Schmadel Lutz D.
Springer Berlin Heidelberg
221
978-3-642-01964-7
10.1007/978-3-642-01965-4
Asteroid 1505 Koranna – Proper Elements
AstDyS-2, Asteroids – Dynamic Site
https://newton.spacedys.com/astdys/index.php?pc=1.1.6&n=1505
29 October 2019
E. F. Tedesco
P. V. Noah
M. Noah
S. D. Price
October 2004
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 – IRAS-A-FPA-3-RDR-IMPS-V6.0
2004PDSS...12.....T
17 October 2019
1505
18 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
18 October 2017
6
Fumihiko Usui
Daisuke Kuroda
Thomas G. Müller
Sunao Hasegawa
Masateru Ishiguro
Takafumi Ootsubo
Daisuke Ishihara
Hirokazu Kataza
Satoshi Takita
Shinki Oyabu
Munetaka Ueno
Hideo Matsuhara
Takashi Onaka
October 2011
Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey
Publications of the Astronomical Society of Japan
63
5
1117–1138
2011PASJ...63.1117U
10.1093/pasj/63.5.1117
free
(online, AcuA catalog p. 153)
Robert Lemke Oliver
Heath Shipley
Richard Ditteon
October 2008
Asteroid Lightcurve Analysis at the Oakley Southern Sky Observatory: 2008 March
http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2008MPBu...35..149O
The Minor Planet Bulletin
35
4
149–150
1052-8091
2008MPBu...35..149O
18 October 2017
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
September 2015
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
150
3
35
2015AJ....150...75W
10.1088/0004-6256/150/3/75
1504.04041
18 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
November 2015
Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results
http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015Icar..261...34V
Icarus
261
34–47
2015Icar..261...34V
10.1016/j.icarus.2015.08.007
1506.00762
18 October 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
1505
1504 Lappeenranta 1505 1506 Xosa
001505
Category:Discoveries by Cyril Jackson (astronomer)
Category:Named minor planets
19390421