楊振寧 (小惑星)
1. 3421 Yangchenning3421 Yangchenning (1975 WK1) is a main-belt asteroid discovered on November 26, 1975 by Purple Mountain Observatory at Nanking.
Read “3421 Yangchenning” on English Wikipedia
Read “楊振寧 (小惑星)” on Japanese Wikipedia
Read “3421 Yangchenning” on DBpedia
Read “3421 Yangchenning” on English Wikipedia
Read “楊振寧 (小惑星)” on Japanese Wikipedia
Read “3421 Yangchenning” on DBpedia
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