145523 Lulin

Main-belt asteroid Comet Lulin December 2018 yes 145523 Lulin #D6D6D6 H.-C. LinQ.-Z. Ye Lulin Obs. 7 March 2006 (145523) Lulin 2006 EM 67 Lulin Mountains(observatory site) main-belt(middle)background 27 April 2019 (JD 2458600.5) 0 25.72 yr (9,396 d) 3.2484 AU 2.2468 AU 2.7476 AU 0.1823 4.55 yr (1,664 d) 273.09° 0.2164 ms / day 10.867° 345.22° 273.12° 3.913 0.301 km 0.073 0.021 15.5 145523 Lulin (provisional designation 2006 EM 67) is a background asteroid from the central region of the asteroid belt, approximately 3.9 km mi off 2 us in diameter. It was discovered on 7 March 2006, by Taiwanese astronomers Hung-Chin Lin (林宏欽) and Ye Quanzhi (葉泉志) at Lulin Observatory in central Taiwan. It was named for the Lulin mountain and the observatory site. Orbit and classification Lulin is a non-family asteroid from the main belt's background population. It orbits the Sun in the central asteroid belt at a distance of 2.2–3.2 AU once every 4 years and 7 months (1,664 days; semi-major axis of 2.75 AU). Its orbit has an eccentricity of 0.18 and an inclination of 11° with respect to the ecliptic. The earliest precovery was taken at ESO's La Silla Observatory in March 1992, extending the asteroid's observation arc by 14 years prior to its discovery observation. Naming This minor planet was named after the Lulin mountain in central Taiwan, location of the discovering Lulin Observatory at an altitude of 2862 meters. The official 145523 naming citation was published by the Minor Planet Center on 2 April 2007 (M.P.C. 59389). At the observatory, Comet Lulin was discovered in 2007. Physical characteristics According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, the asteroid measures 3.9 kilometers in diameter and its surface has a low albedo of 0.073, which is rather typical for a carbonaceous C-type body. As of 2018, no rotational lightcurve of Lulin has been obtained from photometric observations. The body's rotation period, pole and shape remain unknown. References 30em 2017-11-21 last obs. JPL Small-Body Database Browser: 145523 Lulin (2006 EM67) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2145523 https://web.archive.org/web/20170305001511/http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2145523 5 March 2017 Jet Propulsion Laboratory 4 December 2018 145523 Lulin (2006 EM67) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=145523 4 December 2018 MPC/MPO/MPS Archive Minor Planet Center https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html 4 December 2018 Asteroid (145523) Lulin AstDyS-2, Asteroids – Dynamic Site https://newton.spacedys.com/astdys/index.php?n=145523&pc=1.1.6 4 December 2018 Asteroid 145523 Lulin Small Bodies Data Ferret https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=145523+Lulin 4 December 2018 https://web.archive.org/web/20181204195137/https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=145523+Lulin 4 December 2018 dead 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 4 December 2018 145523 4 December 2018 External links Dictionary of Minor Planet Names, Google books Discovery Circumstances: Numbered Minor Planets (145001)-(150000) – Minor Planet Center 145523 145523 145523 Category:Discoveries by Hung-Chin Lin Category:Discoveries by Quanzhi Ye Category:Named minor planets 20060307