Discovered by J. Palisa Minor planet category main-belt Absolute magnitude 9.47 Asteroid group Asteroid belt | Discovery date 5 April 1886 Discovered 5 April 1886 Orbits Sun | |
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Alternative names 1929 DD ยท 1952 FL11952 HU Similar 242 Kriemhild, 266 Aline, 220 Stephania, 265 Anna, 276 Adelheid | ||
257 Silesia is a large Main belt asteroid, about 73 kilometers in diameter. It was discovered by Johann Palisa on April 5, 1886 at Vienna Observatory, Austria.
It is named after Silesia, the province of the discoverer's birthplace (nowadays most of Silesia is in Poland, but Palisa's birthplace is in the small part of Silesia that is in the Czech Republic).
References
257 Silesia Wikipedia(Text) CC BY-SA