112 Iphigenia

Main-belt asteroid October 2019 yes #D6D6D6 112 Iphigenia Christian Heinrich Friedrich Peters 19 September 1870 (112) Iphigenia A870 SA 000112-asteroid shape model (112) Iphigenia.png 3D convex shape model of 112 Iphigenia ˌ ɪ f ᵻ dʒ ᵻ ˈ n aɪ əNoah Webster (1884) A Practical Dictionary of the English Language Iphigenia Main belt 31 July 2016 (JD 2457600.5) 2.43415 AU Gm on 2.12225 AU Gm on 2.7461 AU Gm on on 0.12813 3.80 yr (1387.1 d) 2.6029° 323.538° 16.676° 169.984° 19.01 km/s 0.25953 ms / day 145.57 yr (53169 d) 0 1.11284 AU Gm on 2.60275 AU Gm on 3.493 72.18 4.4 km 2.70 0.75 17 kgCalculated from its standard gravitational parameter GM = 0.018 0.005 km3/s2. 1.47 g/cm3Assuming a diameter of 69.8 km. 31.466 h d on on C 9.84 0.0393 0.005 ~178 K 112 Iphigenia is a fairly large and exceedingly dark main-belt asteroid. It is classified as a C-type asteroid, and therefore probably has a primitive carbonaceous composition. It was discovered by German-American astronomer C. H. F. Peters on September 19, 1870, and named after Iphigenia, a princess sacrificed by her father in Greek mythology. The orbital elements for 112 Iphigenia were published by German astronomer Friedrich Tietjen in 1871. This body is orbiting the Sun with a period of 3.80 years and an eccentricity of 0.13. The orbital plane is inclined by 2.6° to the plane of the ecliptic. 112 Iphigenia has a cross-section diameter of ~72 km. Photometric observations of this asteroid during 2007 at the Observatorio Astronómico de Mallorca were used to create a light curve plot, which was published in 2010. This showed a relatively long synodic rotation period of 31.385 0.006 hours (1.3 days) and a brightness variation of 0.30 0.02 magnitude during each cycle. These findings agree with independent results reported in 2008, which gave a period of 31.466 0.001 hours. Notes References Donald K. Yeomans 112 Iphigenia JPL Small-Body Database Browser NASA Jet Propulsion Laboratory https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=112 12 May 2016 . Stefan Cikota Aleksandar Cikota Lightcurve Photometry of 112 Iphigenia The Minor Planet Bulletin 37 3 107 July 2010 10.1016/j.pss.2012.03.009 2010MPBu...37Q.107C . 1203.4336 119226456 Frederick Pilcher Period Determination for 84 Klio, 98 Ianthe, 102 Miriam 112 Iphigenia, 131 Vala, and 650 Amalasuntha The Minor Planet Bulletin 35 2 71–72 June 2008 10.1016/j.pss.2012.03.009 2008MPBu...35...71P . 1203.4336 119226456 F. Tietjen Elemente der (112) Iphigenia. Aus einem Schreiben des Herrn Dr. F. Tietjen an den Herausgeber Astronomische Nachrichten 77 297 May 1871 1871AN.....77..297T . 10.1002/asna.18710771903 https://zenodo.org/record/1424681 Fuentes-Muñoz Oscar Farnocchia Davide Giorgini Jon D. Park Ryan S. 2025-12-01 Asteroid Mass Estimation by Mutual Perturbations During Close Encounters After Gaia Focused Product Release The Astronomical Journal 170 6 353 10.3847/1538-3881/ae0cc9 0004-6256 free 2025AJ....170..353F 283347135 External links 112 111 Ate 112 113 Amalthea 000112 000112 000112 Category:Discoveries by Christian Peters Category:Named minor planets 18700919 Category:Iphigenia