Main-belt asteroid
109 Felicitas is a dark and fairly large main-belt asteroid . It was discovered by German-American astronomer C. H. F. Peters on October 9, 1869, and named after Felicitas , the Roman goddess of success .[ 5] The only observed stellar occultation by Felicitas is one from Japan (March 29, 2003).[ 6]
This body is orbiting the Sun with a period of 4.43 years and an eccentricity (ovalness) of 0.3. Its orbital plane is inclined by 7.9° from the plane of the ecliptic . 109 Felicitas is classified as a carbonaceous GC-type asteroid . It is spinning with a rotation period of 13.2 hours. During 2002, 109 Felicitas was observed by radar from the Arecibo Observatory . The return signal matched an effective diameter of 89 ± 9 km. This is consistent with the asteroid dimensions computed through other means.[ 4]
References
^ Noah Webster (1884) A Practical Dictionary of the English Language
^ a b c d e Yeomans, Donald K., "109 Felicitas" , JPL Small-Body Database Browser , NASA Jet Propulsion Laboratory , retrieved 12 May 2016 .
^ a b c d Pravec, P.; et al. (May 2012), "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 , vol. 1667, no. 1667, p. 6089, Bibcode :2012LPICo1667.6089P .
^ a b Magri, Christopher; et al. (January 2007), "A radar survey of main-belt asteroids: Arecibo observations of 55 objects during 1999–2003", Icarus , 186 (1): 126– 151, Bibcode :2007Icar..186..126M , doi :10.1016/j.icarus.2006.08.018
^ Schmadel, Lutz D. (2012), Dictionary of Minor Planet Names (6th ed.), Springer, p. 23, ISBN 978-3642297182 .
^ Observed minor planet occultation events, version of 2005 July 26
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