133 Cyrene

Main-belt asteroid July 2020 yes #D6D6D6 133 Cyrene 133 Cyrene.png Lightcurve-based 3D model of 133 Cyrene. James Craig Watson 16 August 1873 Angell Hall Observatory (133) Cyrene A873 QAA910 NB1936 HO1948 QC1959 URThe MPC notates Aethra's retroactive new-style designations as 1873 QA and 1910 NB. s aɪ ' r iː n iːNoah Webster (1884) A Practical Dictionary of the English Language Cyrenean s aɪ r ᵻ ' n iː ə n, Cyrenian s aɪ ' r iː n i ə nCyrenean Main belt 21 November 2025 (JD 2461000.5) 0 3.0742 AU Gm on 2.6736 AU Gm on 7.2245 AU Gm on 0.1303 5.3902 yr (1968.77 d) 7.2245° 318.67° 291.65° 219.02° 17.03 km/s 0.18285 ms / day 152.13 yr (55566 d) 1.6686 AU Gm on 1.6595 AU Gm on 3.205 66.57 6.0 km 3.1 × 1017 kg 2.0? g/cm3 0.0186 m/s² 0.0352 km/s 12.708 h d on12.707 h (0.5295 d) S 7.98, 7.990 0.2563 0.0530.2563 ~133 K Cyrene (nymph) 133 Cyrene is a fairly large and very bright asteroid located in the main asteroid belt. It was discovered by J. C. Watson on 16 August 1873 at Angell Hall Observatory in Ann Arbor, Michigan, and named after Cyrene, a nymph, daughter of king Hypseus and beloved of Apollo in Greek mythology. It is classified as an S-type asteroid based upon its spectrum. It is listed as a member of the Hecuba group of asteroids that orbit near the 2:1 mean-motion resonance with Jupiter. Discovery and naming Cyrene was discovered on 16 August 1873 by astronomer James Craig Watson at Angell Hall Observatory in Ann Arbor, Michigan, United States. Its discovery, alongside that of 132 Aethra, was announced in the journal Astronomische Nachrichten on 30 August. The asteroid was given the name Cyrene after the Greek mythological figure Cyrene, daughter of the Lapithian king Hypseus. With the god Apollo, she bore her two sons Aristaeus and Idmon.25 Orbit thumb|left|An orbital diagram of 133 Cyrene. The ecliptic grid and the orbits of the inner planets and Jupiter are also shown. Cyrene is a main belt asteroid, orbiting the Sun at an average distance—its semi-major axis—of 3.07 astronomical units (AU). Along its 5.39 year long orbit, its distance from the Sun varies from 2.67 AU at perihelion to 3.47 AU at aphelion due to its orbital eccentricity of 0.13. It has an orbital inclination of 7.22° with respect to the ecliptic plane. Physical characteristics In the Tholen classification system, it is categorized as a stony SR-type asteroid. Photometric observations of this asteroid at the Altimira Observatory in 1985 gave a light curve with a period of 12.707 ± 0.015 hours and a brightness variation of 0.22 in magnitude. This result matches previous measurements reported in 1984 and 2005. See also Minor planets named after figures related to Cyrene: 1862 Apollo – A near-Earth asteroid (NEA) named after Cyrene's lover 2135 Aristaeus – An NEA named after Cyrene's son Notes References (133) Cyrene = 1873 QA = 1910 NB = 1936 HO = 1948 QC = 1959 UR https://www.minorplanetcenter.net/db_search/show_object?utf8=%E2%9C%93&object_id=133 Minor Planet Center 5 November 2025 Donald K. Yeomans 133 Cyrene JPL Small-Body Database Browser NASA Jet Propulsion Laboratory https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=133 12 May 2016 . Watson James Craig Correspondence - Discovery of Two New Planets 30 August 1873 Astronomical Register 11 284 1873AReg...11..284W Schmadel Lutz D. Lutz D. Schmadel International Astronomical Union Dictionary of minor planet names 2003 Springer-Verlag Berlin; New York 978-3-540-00238-3 27 https://books.google.com/books?id=VoJ5nUyIzCsC&pg=PA27 . Pravec P. Harris A. W. Kusnirak P. Galad A. Hornoch K. 1 Absolute Magnitudes of Asteroids and a Revision of Asteroid Albedo Estimates from WISE Thermal Observations Asteroids, Comets, Meteors 2012, Proceedings of the conference held May 16–20, 2012 in Niigata, Japan 1667 May 2012 2012LPICo1667.6089P . Richmond Michael Asteroid Lightcurve Data File Astronomy and Astrophysics Supplement Series 1 March 2001 http://spiff.rit.edu/richmond/parallax/phot/LCSUMPUB.TXT 2013-03-29 . Buchheim Robert K. Photometry of asteroids 133 Cyrene, 454 Mathesis, 477 Italia, and 2264 Sabrina Astronomy and Astrophysics Supplement Series 33 2 29–30 June 2006 2006MPBu...33...29B . McDonald Sophia Levy General perturbations and mean elements, with representations of 35 minor planets of the Hecuba group Astronomical Journal 53 199 June 1948 1948AJ.....53..199M . 10.1086/106097 http://adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1948AJ.....53..199M&link_type=ARTICLE&db_key=AST&high= 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. . Dictionary of minor planet names 1 Lutz Schmadel 2003 68 9783540002383 Springer https://books.google.com/books?id=VoJ5nUyIzCsC&pg=PA68 External links 133 132 Aethra 133 134 Sophrosyne Category:Background asteroids Cyrene Cyrene Category:SR-type asteroids (Tholen) Category:S-type asteroids (SMASS) 18730816