(7859) Lhasa

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( 7859 ) Lhasa is an asteroid of the middle main belt, which on 19 October 1979 by the Czech astronomer Antonín Mrkos on Kleť Observatory (IAU code 046) was discovered in Český Krumlov. Unconfirmed sightings of the asteroid, there had been before, for example with the provisional designation 1974 RG on 11 September 1974 at the Crimean Observatory in Nautschnyj.

The asteroid has a mean diameter of 16.00 ( ± 1.7 ) km and has an albedo of 0.0330 (± 0.008) a very dark surface that is blacker than coal, blacker than for example that of the asteroid ( 253) Mathilde. The surface thus has an average reflectance value that is comparable to a black toner.

Mean distance from the sun ( semimajor axis), eccentricity and inclination of the orbital plane of ( 7859 ) Lhasa roughly correspond to the Dora family, a group of asteroids that is named after ( 668 ) Dora.

The asteroid is named after the Tibetan capital Lhasa. The naming of ( 7859 ) Lhasa was the proposal of the Czech astronomers Jana Ticha couple and Miloš Tichý by the International Astronomical Union ( IAU) on 23 May 2000.

Orbital inclination Longitude of the ascending node Argument of periapsis Orbital speed Intrinsic brightness Minor planet designation Crimean Astrophysical Observatory Tibet Autonomous Region Jet Propulsion Laboratory Pasadena, California
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