الإنجليزية - الإنجليزية
تعريف perigeum في الإنجليزية الإنجليزية القاموس.
- It is sometimes, but rarely, used of the nearest points of other orbits, as of a comet, a planet, etc
- Called also epigee, epigeum
- That point in the orbit of the moon which is nearest to the earth; opposed to apogee