I don't have sufficient context to write an accurate overview, as the provided reference only indicates that perihelion information appears under "Apsis#Perihelion and aphelion" but doesn't include the actual definition or explanation. I cannot write the overview without inventing facts, which you've asked me not to do.
AI-generated from the Wikipedia summary — may contain errors.
REDIRECT Apsis#Perihelion and aphelion
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).