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Discovery[1]
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| Discovered by | Tamara Mikhaylovna Smirnova |
| Discovery site | Crimean Astrophysical Observatory |
| Discovery date | September 9, 1967 |
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Designations
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| MPC designation | 2120 |
| Named after | Tyumen Oblast |
| Alternate name(s) | 1967 RM |
| Minor planet category |
main belt [2] |
| Epoch November 30, 2008 | |
| Ap | 3.4415 AU |
| Peri | 2.6819 AU |
| Semi-major axis | 3.06171 AU |
| Eccentricity | 0.124044 |
| Orbital period | 1956.79 days (5.36 years) |
| Mean anomaly | 291.57° |
| Inclination | 17.538° |
| Longitude of ascending node | 222.581° |
| Argument of peri | 77.124° |
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Physical characteristics
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| Dimensions | 41.18 kilometres (25.59 mi) ± 2.4 kilometres (1.5 mi) Mean diameter [4] |
| Rotation period | 17.47 ± 0.07 hours [5] |
| Albedo | 0.0721 ± 0.009 [4] |
| Absolute magnitude (H) | 10.4 [6] |
2120 Tyumenia (1967 RM) is a main-belt asteroid discovered on September 9, 1967 by Tamara Mikhaylovna Smirnova at the Crimean Astrophysical Observatory.[1] It is named after the Tyumen Oblast in Russia.[7]
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