109 Felicitas
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For other uses of Felicitas, see Felicity (disambiguation).
Discovery
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Discovered by | Christian Heinrich Friedrich Peters |
Discovery date | October 9, 1869 |
Designations
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Alternative names | |
Minor planet category |
Main belt |
Epoch December 31, 2006 (JD 2454100.5) | |
Aphelion | 523.329 Gm (3.498 AU) |
Perihelion | 283.326 Gm (1.894 AU) |
Semi-major axis | 403.327 Gm (2.696 AU) |
Eccentricity | 0.298 |
Orbital period | 1616.951 d (4.43 a) |
Average orbital speed | 17.73 km/s |
Mean anomaly | 331.256° |
Inclination | 7.886° |
Longitude of ascending node | 3.207° |
Argument of perihelion | 56.586° |
Physical characteristics
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Dimensions | 89.4 km |
Mass | 7.5×1017 kg |
Mean density | ? g/cm³ |
Equatorial surface gravity | 0.0250 m/s² |
Escape velocity | 0.0473 km/s |
Rotation period | ? d |
Albedo | ? |
Temperature | ~169 K |
Spectral type | C |
Absolute magnitude | 8.75 |
109 Felicitas is a dark and fairly large main belt asteroid. It was discovered by C. H. F. Peters on October 9, 1869 and named after Felicitas, the Roman goddess of success. The only observed stellar occultation by Felicitas is one from Japan (March 29, 2003). [1]
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