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Discovery and designation
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| Discovered by | T. M. Smirnova |
| Discovery site | Crimean Astrophysical Observatory |
| Discovery date | July 13, 1972 |
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Designations
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| MPC designation | 2112 |
| Named after | Aleksandr Ulyanov |
| Alternate name(s) | 1972 NP |
| Epoch May 14, 2008 | |
| Ap | 2.5641563 |
| Peri | 1.9425035 |
| Eccentricity | 0.5179409 |
| Orbital period | 1295.4796819 |
| Mean anomaly | 130.29976 |
| Inclination | 3.77318 |
| Longitude of ascending node | 543.84559 |
| Argument of peri | 176.20810 |
| Absolute magnitude (H) | 12.8 |
2112 Ulyanov (1992 NP) is a main-belt asteroid discovered on July 17, 1972 by T. M. Smirnova at the Crimean Astrophysical Observatory. It is named after Lenin's older brother Aleksandr Ilyich Ulyanov.
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