116 Sirona

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116 Sirona
Discovery
Discovered by Christian Heinrich Friedrich Peters
Discovery date September 8, 1871
Designations
Named after
Sirona
Minor planet category Main belt
Orbital characteristics[1]
Epoch December 31, 2006 (JD 2454100.5)
Aphelion 471.228 Gm (3.150 AU)
Perihelion 357.318 Gm (2.389 AU)
414.273 Gm (2.769 AU)
Eccentricity 0.137
1683.220 d (4.61 a)
17.81 km/s
340.279°
Inclination 3.569°
64.036°
93.119°
Physical characteristics
Dimensions 71.7 km
Mass 3.9×1017 kg
0.0200 m/s²
0.0379 km/s
12.028[2] h
Temperature ~167 K
Spectral type
S
7.82[2]

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.[3]

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.[2] It has the spectrum of an S-type asteroid.

References[edit]

  1. ^ Yeomans, Donald K., "116 Sirona", JPL Small-Body Database Browser (NASA Jet Propulsion Laboratory), retrieved 2013-03-25. 
  2. ^ a b c Zeigler, K. W.; Florence, W. B. (June 1985), "Photoelectric photometry of asteroids 9 Metis, 18 Melpomene, 60 Echo, 116 Sirona, 230 Athamantis, 694 Ekard, and 1984 KD", Icarus 62: 512–517, Bibcode:1985Icar...62..512Z, doi:10.1016/0019-1035(85)90191-5. 
  3. ^ Schmadel, Lutz D. (2003), Dictionary of Minor Planet Names (5th ed.), Springer, p. 26, ISBN 3540002383.