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Discovery and designation
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| Discovered by | E. W. Elst | |||||||||
| Discovery date | April 8, 1991 | |||||||||
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Designations
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| MPC designation | 9954 Brachiosaurus | |||||||||
| Named after | Brachiosaurus | |||||||||
| Alternate name(s) | 1991 GX7, 1984 WP5, 1993 UO3 | |||||||||
| Epoch October 27, 2007 | ||||||||||
| Ap | 3.1227684 AU | |||||||||
| Peri | 2.3962386 AU | |||||||||
| Semi-major axis | 2.7595035 AU | |||||||||
| Eccentricity | 0.1316414 | |||||||||
| Orbital period | 1674.3446220 d | |||||||||
| Mean anomaly | 6.85193° | |||||||||
| Inclination | 9.09301° | |||||||||
| Longitude of ascending node | 3.80765° | |||||||||
| Argument of peri | 48.26847° | |||||||||
| Dimensions | ~37.1 km[1] | |||||||||
| Geometric albedo | ~0.01 | |||||||||
| Surface temp. Kelvin Celsius |
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| Absolute magnitude (H) | 13.6 | |||||||||
9954 Brachiosaurus is a main belt asteroid. It orbits the Sun once every 4.58 years.[2]
Discovered on April 8, 1991 by E. W. Elst, it was given the provisional designation "1991 GX7". It was later renamed "Brachiosaurus" after Brachiosaurus, a large herbivorous dinosaur.[3]
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