1779 Paraná

Main-belt asteroid October 2019 yes 1779 Paraná #D6D6D6 15 June 1950 M. Itzigsohn La Plata Obs. (1779) Paraná 1950 LZ1976 SF 86116 P-L Paraná River(South American river) main-belt(inner) 4 September 2017 (JD 2458000.5) 0 66.86 yr (24,422 days) 2.5262 AU 1.8249 AU 2.1755 AU 0.1612 3.21 yr (1,172 days) 344.02° 0.3072 ms / day 0.8987° 254.43° 11.493° 4 km (calculated at 0.25)4.085 0.223 km 0.221 0.023 14.1 1779 Paraná, provisional designation 1950 LZ, is an asteroid from the inner regions of the asteroid belt, approximately 4 kilometers in diameter. The asteroid was discovered on 15 June 1950, by Argentine astronomer Miguel Itzigsohn at the La Plata Astronomical Observatory in La Plata, capital of the province of Buenos Aires. It was named for the Paraná River in South America. Orbit and classification Paraná orbits the Sun in the inner main-belt at a distance of 1.8–2.5 AU once every 3 years and 3 months (1,172 days). Its orbit has an eccentricity of 0.16 and an inclination of 1° with respect to the ecliptic. As no precoveries were taken, and no prior identifications were made, Paranás observation arc begins with its official discovery observation in 1950. Paraná has also been cataloged by the Palomar–Leiden survey and received the survey designation 6116 P-L (PLS6116). Physical characteristics Diameter and albedo According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Paraná measures 4.09 kilometers in diameter and its surface has an albedo of 0.221. Based on a magnitude-to-diameter conversion, using an albedo in the range of 0.05 to 0.25 and a magnitude of 14.1, the asteroid's generic diameter is between 4 and 9 kilometers. Rotation period As of 2017, Paranás spectral type, rotation period and shape remain unknown. Naming This minor planet was named for a large and 4,880-kilometers long Paraná River that runs through northern Argentina, Brazil and Paraguay. It is a major tributary to the La Plata river, where the city of La Plata and the discovering observatory are located (also see 1029 La Plata). The official naming citation was published by the Minor Planet Center on 8 April 1982 (M.P.C. 6832). References 30em 2017-04-26 last obs. JPL Small-Body Database Browser: 1779 Parana (1950 LZ) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001779 Jet Propulsion Laboratory 22 June 2017 Dictionary of Minor Planet Names – (1779) Paraná Schmadel Lutz D. Springer Berlin Heidelberg 142 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1780 (1779) Paraná 1779 Parana (1950 LZ) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1779 19 December 2016 MPC/MPO/MPS Archive Minor Planet Center https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html 19 December 2016 Absolute Magnitude (H) NASA/JPL http://neo.jpl.nasa.gov/glossary/h.html https://web.archive.org/web/20010302182040/http://neo.jpl.nasa.gov/glossary/h.html 2 March 2001 22 March 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 19 December 2016 1779 22 June 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 1779 1778 Alfvén 1779 1780 Kippes 001779 Category:Discoveries by Miguel Itzigsohn Category:Named minor planets 6116 19500615