1858 Lobachevsk (or Lobachevskij) (1972 QL) is a Main-belt asteroid that was discovered August 18 1972 by L. V. Zhuravleva. The asteroid was named in honor of mathematician Nikolai Lobachevsky. It is 17 km in diameter.In a May 2002 photographic survey United States astronomers found the rotation period of this particular to be 7.00 plus or minus 0.01 h with an amplitude of 0.6 mag.
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