116 Sirona

Main-belt asteroid October 2019 yes #D6D6D6 116 Sirona Christian Heinrich Friedrich Peters 8 September 1871 (116) Sirona A871 RA; 1954 UC 3;1998 EK 13; 1998 ES 21 000116-asteroid shape model (116) Sirona.png 3D convex shape model of 116 Sirona ' s ɪr oʊ n ə Đīrona Main belt 31 July 2016 (JD 2457600.5) 2.76741 AU Gm on 2.37322 AU Gm on 3.1616 AU Gm on on 0.14244 4.60 yr (1681.5 d) 3.5635° 63.724° 94.932° 7.59231° 17.81 km/s 71.70 5.8 km 3.917 kg 0.0200 m/s2 0.0379 km/s 12.028 h d on on S 7.82 0.2560 0.047 ~167 K 0.21409 ms / day 143.31 yr (52345 d) 0 1.38451 AU Gm on 1.83156 AU Gm on 3.321 116 Sirona is a somewhat large and bright-colored main-belt asteroid that was discovered by the German-American astronomer C. H. F. Peters on September 8, 1871, and named after Sirona, the Celtic goddess of healing. This body is orbiting the Sun with a period of 4.60 years and an eccentricity (ovalness) of 0.14. The orbital plane is inclined by 3.56° to the plane of the ecliptic. The cross-section diameter of this object is ~72 km. Photometric observations of this asteroid gave a light curve with a period of 12.028 hours and a brightness variation of 0.42 in magnitude. It has the spectrum of an S-type asteroid, suggesting a siliceous composition. References Donald K. Yeomans 116 Sirona JPL Small-Body Database Browser NASA Jet Propulsion Laboratory https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=116 12 May 2016 . Lutz D. Schmadel Dictionary of Minor Planet Names Springer 26 5th 2003 3540002383 https://books.google.com/books?id=KWrB1jPCa8AC&pg=PA982 . Zeigler K. W. Florence W. B. Photoelectric photometry of asteroids 9 Metis, 18 Melpomene, 60 Echo, 116 Sirona, 230 Athamantis, 694 Ekard, and 1984 KD Icarus 62 512–517 June 1985 10.1016/0019-1035(85)90191-5 1985Icar...62..512Z . External links 116 115 Thyra 116 117 Lomia 000116 Category:Discoveries by Christian Peters Category:Named minor planets 000116 000116 18710908