160 Una

Main-belt asteroid September 2018 yes #D6D6D6 160 Una 160Una (Lightcurve Inversion).png A three-dimensional model of 160 Una based on its lightcurve C. H. F. Peters 20 February 1876 (160) Una ' j uː n əBenjamin Smith (1903) The Century Dictionary and Cyclopedia Main belt 31 July 2016 (JD 2457600.5) 2.72802 AU Gm on 2.54727 AU Gm on 2.90877 AU Gm on on 0.066257 4.51 yr (1645.8 d) 3.82512° 8.60989° 52.8418° 144.472° 18.01 km/s 81.24 2.1 km 5.6×1017 kg (assumed) 2.0? g/cm3 0.0227 m/s2 0.0429 km/s 11.033 h d on on0.234 d (5.61 h)http://www.astrosurf.com/aude-old/map_files/AstVarMAP01-2003.htm Lightcurves and map data on numbered asteroids N° 1 to 52225 2008-11-03 dead https://web.archive.org/web/20051127063200/http://www.astrosurf.com/aude-old/map_files/AstVarMAP01-2003.htm 2005-11-27 CAsteroid Lightcurve Data File, Updated March 1, 2001 9.08, 8.95 0.0625 0.0030.063http://dorothy.as.arizona.edu/DSN/IRAS/index_iras.html Infrared Astronomical Satellite (IRAS) 2005-02-24 dead https://web.archive.org/web/20050224095554/http://dorothy.as.arizona.edu/DSN/IRAS/index_iras.html 2005-02-24 ~170 K 0.218742 ms / day 118.30 yr (43209 d) 0 1.56031 AU Gm on 2.30107 AU Gm on 3.349 160 Una is a fairly large and dark, primitive main belt asteroid that was discovered by German-American astronomer C. H. F. Peters on February 20, 1876, in Clinton, New York. It is named after a character in Edmund Spenser's epic poem The Faerie Queene (1590). This minor planet is orbiting the Sun at a distance of 2.73 AU with an eccentricity of 0.07. The orbital plane is inclined at an angle of 3.83° to the plane of the ecliptic. In the Tholen classification system it is categorized as a CX-type, while the Bus asteroid taxonomy system lists it as an Xk asteroid. Photometric observations of this asteroid made at the Torino Observatory in Italy during 1990–1991 were used to determine a synodic rotation period of 5.61 ± 0.01 hours. It has an estimated diameter of about 81 km. References Numbered Minor Planets 1–5000 Discovery Circumstances IAU Minor Planet center https://www.minorplanetcenter.net/iau/lists/NumberedMPs000001.html 2013-04-07 . Donald K. Yeomans 160 Una JPL Small-Body Database Browser NASA Jet Propulsion Laboratory https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=160 12 May 2016 . Warner Brian D. Initial Results of a Dedicated H-G Project The Minor Planet Bulletin 34 113–119 December 2007 4 2007MPBu...34..113W . di Martino M. Blanco C. Riccioli D. de Sanctis G. 1 Lightcurves and rotational periods of nine main belt asteroids Icarus 107 2 269–275 February 1994 10.1006/icar.1994.1022 1994Icar..107..269D . DeMeo Francesca E. Binzel Richard P. Slivan Stephen M. Bus Schelte J. 1 An extension of the Bus asteroid taxonomy into the near-infrared Icarus 202 1 160–180 July 2009 10.1016/j.icarus.2009.02.005 2009Icar..202..160D http://www.tara.tcd.ie/bitstream/2262/43276/1/PEER_stage2_10.1016%252Fj.icarus.2009.02.005.pdf 2013-04-08 . dead https://web.archive.org/web/20140317200310/https://www.tara.tcd.ie/bitstream/2262/43276/1/PEER_stage2_10.1016/j.icarus.2009.02.005.pdf 2014-03-17 See appendix A. External links 2011-Jan-24 Occultation / (2011 Asteroidal Occultation Results for North America) 160 159 Aemilia 160 161 Athor 000160 Category:Discoveries by Christian Peters Category:Named minor planets 000160 000160 18760220