117 Lomia
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Discovery
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| Discovered by | Alphonse Borrelly |
| Discovery date | September 12, 1871 |
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Designations
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| Minor planet category |
Main belt |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion | 460.170 Gm (3.076 AU) |
| Perihelion | 434.790 Gm (2.906 AU) |
| Semi-major axis | 447.480 Gm (2.991 AU) |
| Eccentricity | 0.028 |
| Orbital period | 1889.604 d (5.17 a) |
| Average orbital speed | 17.22 km/s |
| Mean anomaly | 0.674° |
| Inclination | 14.928° |
| Longitude of ascending node | 348.991° |
| Argument of perihelion | 62.315° |
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Physical characteristics
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| Dimensions | 148.7 km |
| Mass | 3.4×1018 kg |
| Mean density | ? g/cm³ |
| Equatorial surface gravity | 0.0416 m/s² |
| Escape velocity | 0.0786 km/s |
| Rotation period | ? d |
| Albedo | ? |
| Temperature | ~161 K |
| Spectral type | C |
| Absolute magnitude | 7.95 |
117 Lomia is a rather large Main belt asteroid. It has a very dark surface and primitive carbonaceous composition. It was discovered by A. Borrelly on September 12, 1871. Occultations by Lomia have so far been observed twice, in 2000 and 2003.
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