257 Silesia

Tags: Planet.

257 Silesia is a large Main belt asteroid.It was discovered by Johann Palisa on April 5 1886 in Vienna.It is named after Silesia a region of the Central Europe.Little data is available on it.

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apoapsis (km)

5.21721e+11

average speed (km/s)

60732.0

orbital period (μ)

1.73607e+08

periapsis (km)

4.10669e+11

absolute magnitude

9.47

albedo

0.0545

discovery date

1886-04-05

discoverer

Johann Palisa

epoch

30 January 2005 (JD 2453400.5)

former name

1929 DD 1952 FL1, 1952 HU

rotation period (s)

56554.2