1 entry 1 source
Periastron
Open directlyWebster's 1828 Dictionary · 1828
Part of speech: noun (n.)
That point, in the real or apparent orbit of one star revolving around another, at which the former is nearest to the latter.
1 entry 1 source
Part of speech: noun (n.)
That point, in the real or apparent orbit of one star revolving around another, at which the former is nearest to the latter.