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1736 Floirac
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Stony Florian asteroid
October 2019
yes
1736 Floirac
#D6D6D6
6 September 1967
G. Soulié
Bordeaux Obs.
(1736) Floirac
1967 RA1927 RB1927 SN1934 XC1937 RP1952 DO 11957 TC1957 US1962 CNA914 WD
Floirac, Gironde(location of observatory)
main-beltFlora
4 September 2017 (JD 2458000.5)
0
89.65 yr (32,745 days)
2.6074 AU
1.8500 AU
2.2287 AU
0.1699
3.33 yr (1,215 days)
331.80°
4.5502°
159.80°
248.92°
8.617 0.0758.701 0.119 km8.729 km8.73 km (taken)9.50 0.30 km10.08 0.34 km
6.775 0.001 hLCDB-Pravec-2007lightcurve-plot12.28 0.06 h
0.252 0.0200.258 0.0600.27110.2994 0.04200.302 0.021
S
11.84 0.07 (R)LCDB-Pravec-200712.2012.2412.33 0.08612.412.44 0.33
1736 Floirac, provisional designation 1967 RA, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 8.7 kilometer in diameter.
It was discovered on 6 September 1967, by French astronomer Guy Soulié at Bordeaux Observatory in southwestern France, who named it after the French town of Floirac.
Classification and orbit
Floirac is a member of the Flora family. It orbits the Sun at a distance of 1.9–2.6 AU once every 3 years and 4 months (1,215 days). Its orbit has an eccentricity of 0.17 and an inclination of 5° with respect to the ecliptic.
First observed as A914 WD at Simeiz Observatory in 1914, the body's observation arc begins with its 1927-identification as 1927 RB at Heidelberg Observatory, approximately 40 years prior to its official discovery observation at Bordeaux.
Physical characteristics
This asteroid has been characterized as a stony S-type asteroid by PanSTARRS photometric survey.
Lightcurves
In October 2007, a rotational lightcurve of Floirac was obtained from photometric observations by astronomer Petr Pravec and collaborating colleges. Lightcurve analysis gave a rotation period of 6.775 hours with a low brightness variation of 0.08 magnitude (U=3).LCDB-Pravec-2007lightcurve-plot An alternative period solution of 12.28 hours (Δmag 0.25) was found by French amateur astronomer Laurent Bernasconi in June 2006 (U=2).
Diameter and albedo
According to the surveys carried out by the Japanese Akari satellite and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Floirac measures between 8.617 and 10.08 kilometers in diameter and its surface has an albedo of 0.252 and 0.302.
The Collaborative Asteroid Lightcurve Link takes an albedo of 0.2711 and a diameter of 8.73 kilometers with an absolute magnitude of 12.4, based on Petr Pravec's revised WISE-data.
Naming
This minor planet was named by the discoverer for Floirac, a French town in the Département Gironde, near Bordeaux, where the discovering observatory is located. The official 1736 naming citation was published by the Minor Planet Center on 15 July 1968 (M.P.C. 2883).
Notes
LCDB-Pravec-2007 Pravec (2007) web: rotation period 6.775 0.001 hours with a brightness amplitude of 0.08 mag. Quality Code is 3. Summary figures at Collaborative Asteroid Lightcurve Link (CALL) for (1736) Floirac and Pravec, P.; Wolf, M.; Sarounova, L. (2007)
lightcurve-plot Lightcurve plot of 1736 Floirac by Higgins and Pravec, from Ondrejov data obtained by the NEO Photometric Program and collaborating projects
References
30em 2017-04-26 last obs.
JPL Small-Body Database Browser: 1736 Floirac (1967 RA)
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001736
Jet Propulsion Laboratory
7 June 2017
Dictionary of Minor Planet Names – (1736) Floirac
Schmadel Lutz D.
Springer Berlin Heidelberg
138
2007
978-3-540-00238-3
10.1007/978-3-540-29925-7_1737 (1736) Floirac
1736 Floirac (1967 RA)
Minor Planet Center
https://www.minorplanetcenter.net/db_search/show_object?object_id=1736
21 December 2016
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
Asteroids and comets rotation curves – (1736) Floirac
Behrend
Raoul
Geneva Observatory
https://obswww.unige.ch/~behrend/page4cou.html#001736
21 December 2016 October 2026 InternetArchiveBot
1736
21 December 2016
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
(online, AcuA catalog p. 153)
6
A. Mainzer
T. Grav
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
Petr Pravec
Alan W. Harris
Peter Kusnirák
Adrián Galád
Kamil Hornoch
September 2012
Absolute magnitudes of asteroids and a revision of asteroid albedo estimates from WISE thermal observations
https://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012Icar..221..365P
Icarus
221
1
365–387
2012Icar..221..365P
10.1016/j.icarus.2012.07.026
21 December 2016 11104/0217021
free
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
21 December 2016
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
21 December 2016
6
Joseph R. Masiero
T. Grav
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
2
11
2014ApJ...791..121M
10.1088/0004-637X/791/2/121
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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/20241208174218/http://obswww.unige.ch/~behrend/page_cou.html 8 December 2024 – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
1736
1735 ITA 1736 1737 Severny
001736
Category:Discoveries by Guy Soulié
Category:Named minor planets
19670906