交点 (天文)
1. Orbital nodeAn orbital node is one of the two points where an orbit crosses a plane of reference to which it is inclined. An orbit which is contained in the plane of reference has no nodes.
Read “Orbital node” on English Wikipedia
Read “交点 (天文)” on Japanese Wikipedia
Read “Orbital node” on DBpedia
Read “Orbital node” on English Wikipedia
Read “交点 (天文)” on Japanese Wikipedia
Read “Orbital node” on DBpedia
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