1597 Laugier

Main-belt asteroid October 2019 yes 1597 Laugier #D6D6D6 001597-asteroid shape model (1597) Laugier.png Shape model of Laugier from its lightcurve 7 March 1949 L. Boyer Algiers Obs. (1597) Laugier 1949 EB Marguerite Laugier(French astronomer) main-belt(outer) 4 September 2017 (JD 2458000.5) 0 68.01 yr (24,840 days) 3.1024 AU 2.5869 AU 2.8446 AU 0.0906 4.80 yr (1,752 days) 67.764° 0.2054 ms / day 11.812° 158.63° 52.042° 12.885 0.16924.30 km (calculated) 8.0199 h8.02272 h 0.057 (assumed)0.244 0.033 C 11.711.8 1597 Laugier, provisional designation 1949 EB, is an asteroid from the outer region of the asteroid belt, approximately 20 kilometers in diameter. It was discovered on 7 March 1949, by French astronomer Louis Boyer at the north African Algiers Observatory in Algeria. It was later named after French astronomer Marguerite Laugier. Orbit and classification This asteroid orbits the Sun in the outer main-belt at a distance of 2.6–3.1 AU once every 4 years and 10 months (1,752 days). Its orbit has an eccentricity of 0.09 and an inclination of 12° with respect to the ecliptic. As no precoveries were taken and no prior identifications were made, Laugiers observation arc begins with its official discovery observation in 1949. Physical characteristics Laugier is a presumed C-type asteroid Lightcurves A rotational lightcurve for this asteroid from an unpublished source at the Asteroid Light Curve Database gave a well-defined rotation period of 8.020 hours with a brightness amplitude between 0.68 and 0.71 in magnitude (U=3). A similar period of 8.023 hours was previously obtained from remodeled data of the Lowell photometric database in March 2016. Diameter and albedo According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Laugier measures 12.9 kilometers in diameter and its surface has an albedo of 0.244, while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids of 0.057, and calculates a diameter of 24.3 kilometers based on an absolute magnitude of 11.8. Naming This minor planet was named after French astronomer and asteroid discoverer Marguerite Laugier (1896–1976). The official 1597 naming citation was published by the Minor Planet Center on 1 August 1978 (M.P.C. 4418). References 30em 2017-03-10 last obs. JPL Small-Body Database Browser: 1597 Laugier (1949 EB) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001597 Jet Propulsion Laboratory 5 June 2017 Dictionary of Minor Planet Names – (1597) Laugier Schmadel Lutz D. Springer Berlin Heidelberg 126 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1598 (1597) Laugier 1597 Laugier (1949 EB) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1597 20 July 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 1597 20 July 2016 J. Durech J. Hanus D. Oszkiewicz R. Vanco March 2016 Asteroid models from the Lowell photometric database http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2016A&A...587A..48D Astronomy and Astrophysics 587 6 2016A&A...587A..48D 10.1051/0004-6361/201527573 1601.02909 20 July 2016 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 8 December 2016 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 1597 1596 Itzigsohn 1597 1598 Paloque 001597 Category:Discoveries by Louis Boyer (astronomer) Category:Named minor planets 19490307