171 Ophelia

Large main-belt asteroid July 2018 yes (171) Ophelia #D6D6D6 171 Ophelia 000171-asteroid shape model (171) Ophelia.png 3D convex shape model of 171 Ophelia oʊ ˈ f iː l i ə oh FEE lee əBenjamin Smith (1903) The Century Dictionary and Cyclopedia A877 AB Ophelian ɒ ˈ f iː l i ə nOphelian A. Borrelly 13 January 1877 Main belt (Themis) 3.1326 AU Gm on 2.7175 AU Gm on 3.5476 AU Gm on on 5.54 yr (2025.1 d) 2.5461° 0.13249 31 July 2016 (JD 2457600.5) 100.52° 56.849° 11.164° 0.17777 ms / day 122.15 yr (44615 d) 0 130.808 1.483 km (1.064 ± 0.535/0.351)18 kg 1.755 ± 0.883/0.579 g/cm3Assuming a diameter of 105.01 ± 3.54 km. 6.66535 h d on on C 8.31 0.0615 0.004 171 Ophelia is a large, dark Themistian asteroid that was discovered by French astronomer Alphonse Borrelly on 13 January 1877. It was named after Ophelia in Shakespeare's Hamlet.Schmadel Lutz Dictionary of Minor Planet Names 2003 Springer Science & Business Media 9783540002383 30 https://books.google.com/books?id=VoJ5nUyIzCsC&q=Ophelia 17 July 2019 en This object is orbiting the Sun at a distance of 3.13 AU with an eccentricity of 0.13 and an orbital period of 5.54 years. The orbital plane is inclined at an angle of 2.55° to the plane of the ecliptic. This asteroid is a member of the Themis family of asteroids that share similar orbital elements. It probably has a primitive composition, similar to that of the carbonaceous chondrite meteorites. The body spans a diameter of 131 km. An analysis of 40 light curves in 2015 suggested it has a convex, elongated shape with one end smaller than the other. A 1979 study of the Algol-like light curve produced by this asteroid concluded that it was possible to model the brightness variation by assuming a binary system with a circular orbit, a period of 13.146 hours, and an inclination of 15° to the line of sight from the Earth. Photometric observations of this asteroid at the Leura Observatory in Leura, Australia during 2006 gave a rotation period of 6.6666 ± 0.0002 hours and a brightness variation of 0.50 ± 0.02 in magnitude. This is in agreement with previous studies. Ophelia is also the name of a moon of Uranus. Notes References A spectroscopic study of the THEMIS family 1 Florczak M. Lazzaro D. Mothé-Diniz T. Angeli C. A. Betzler A. S. Astronomy and Astrophysics Supplement 134 463–471 February 1999 3 10.1051/aas:1999150 1999A&AS..134..463F free Donald K. Yeomans 171 Ophelia JPL Small-Body Database Browser NASA Jet Propulsion Laboratory https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=171 6 May 2016 . Patrick Moore Patrick Moore Robin Rees Patrick Moore's Data Book of Astronomy Cambridge University Press 2nd 2011 165 9781139495226 https://books.google.com/books?id=2FNfjWKBZx8C&pg=PA165 . Wijesinghe M. P. Tedesco E. F. A test of plausibility of eclipsing binary asteroids Icarus 40 383–393 10.1016/0019-1035(79)90031-9 1979Icar...40..383W . December 1979 3 Oey Julian Lightcurves analysis of 10 asteroids from Leura Observatory The Minor Planet Bulletin 33 4 96–99 2006MPBu...33...96O . December 2006 . Fienga A. Avdellidou C. Hanuš J. February 2020 Asteroid masses obtained with INPOP planetary ephemerides https://academic.oup.com/mnras/article/492/1/589/5658701 Monthly Notices of the Royal Astronomical Society 492 1 589–602 10.1093/mnras/stz3407 free subscription . Photometric analysis for the spin and shape parameters of the C-type main-belt asteroids (171) Ophelia and (360) Carlova Wang Xiaobin etal Astronomy & Astrophysics 581 id. A55 September 2015 10.1051/0004-6361/201526523 2015A&A...581A..55W 10138/224789 free External links 171 170 Maria 171 172 Baucis 000171 Category:Discoveries by Alphonse Borrelly Category:Named minor planets 000171 000171 18770113 Category:Ophelia