196 Philomela

Main-belt asteroid October 2019 yes (196) Philomela #D6D6D6 196 Philomela A879 JA; 1934 JO f ɪ l oʊ ' m iː l əPhilomel, Philomela Philomelian f ɪ l oʊ ' m iː l i ə n 196Philomela (Lightcurve Inversion).png A three-dimensional model of 196 Philomela based on its lightcurve C. H. F. Peters, 1879 Main belt 3.1177 AU Gm on 3.0630 AU Gm on 3.1723 AU Gm on on 5.50 yr (2010.7 d) 7.2554° 0.017530 145.29 ± 7.71 km (composite estimate)144.6 4.1 km 4.58 0.36 18 kgCalculated from its standard gravitational parameter GM = 0.306 0.024 km3 s2. 2.90 g/cm3 8.3340 h d on on8.332827 hours S 6.54 0.2299 0.023 14 May 1879 31 July 2016 (JD 2457600.5) 72.384° 195.69° 276.49° 0.17904 ms / day https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?sstr=20000196 196 Philomela JPL Small-Body Database NASA/Jet Propulsion Laboratory 12 May 2016 136.91 yr (50005 d) 0 2.04771 AU Gm on 1.83421 AU Gm on 3.204 196 Philomela is a large and bright main-belt asteroid. It was discovered by C. H. F. Peters on May 14, 1879, in Clinton, New York. The asteroid is named after Philomela, the woman who became a nightingale in Greek mythology.Schmadel Lutz D. Dictionary of Minor Planet Names fifth Springer 2003 3-540-00238-3 . This object is orbiting the Sun at a distance of 3.12 AU with a low eccentricity of 0.018 and an orbital period of 5.50 years. The orbital plane is inclined at an angle of 7.26° to the plane of the ecliptic. This is a stony S-type asteroidAsteroids 10 Hygiea, 135 Hertha, and 196 Philomela: Heterogeneity of the material from the reflectance spectra Busarev V. V. Solar System Research 45 1 43–52 February 2011 10.1134/S0038094610061036 2011SoSyR..45...43B with a diameter of approximately 145 km. It is spinning with a rotation period of 8.334 hours. In the late 1990s, a network of astronomers worldwide gathered light curve data that was ultimately used to derive the spin states and shape models of 10 new asteroids, including 196 Philomela. The shape model for this asteroid is described as asymmetrical and smooth, while the light curve varies by up to 0.4 in magnitude.Durech J. Kaasalainen M. Marciniak A. Allen W. H. etal Asteroid brightness and geometry Astronomy and Astrophysics 465 1 April 2007 331–337 To date there have been two reported Philomelian stellar occultations.March 2008 Notes References B. Carry Density of asteroids Planetary and Space Science 73 98–118 December 2012 1 10.1016/j.pss.2012.03.009 2012P&SS...73...98C . 1203.4336 See Table 1. Durech J. Kaasalainen M. Marciniak A. 1 Physical models of ten asteroids from an observers' collaboration network Astronomy and Astrophysics 465 1 331–337 April 2007 10.1051/0004-6361:20066347 2007A&A...465..331D . free 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 196 195 Eurykleia 196 197 Arete Category:Background asteroids Philomela Philomela Category:S-type asteroids (Tholen) Category:S-type asteroids (SMASS) 18790514 Category:Objects observed by stellar occultation