123 Brunhild
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Discovery
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| Discovered by | Christian Heinrich Friedrich Peters |
| Discovery date | July 31, 1872 |
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Designations
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| Minor planet category |
Main belt |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion | 452.102 Gm (3.022 AU) |
| Perihelion | 353.956 Gm (2.366 AU) |
| Semi-major axis | 403.029 Gm (2.694 AU) |
| Eccentricity | 0.122 |
| Orbital period | 1615.156 d (4.42 a) |
| Average orbital speed | 18.08 km/s |
| Mean anomaly | 38.416° |
| Inclination | 6.428° |
| Longitude of ascending node | 307.954° |
| Argument of perihelion | 124.933° |
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Physical characteristics
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| Dimensions | 48.0 km |
| Mass | 1.2×1017 kg |
| Mean density | ? g/cm³ |
| Equatorial surface gravity | 0.0134 m/s² |
| Escape velocity | 0.0254 km/s |
| Rotation period | ? d |
| Albedo | ? |
| Temperature | ~170 K |
| Spectral type | S |
| Absolute magnitude | 8.89 |
123 Brunhild is a fairly typical stony S-type main belt asteroid. It was discovered by C. H. F. Peters on July 31, 1872 and named after Brünnehilde, a Valkyrie in Norse mythology.
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