semimajor axis


semimajor axis

noun

  1. Geometry. one half the major axis of an ellipse.
  2. Astronomy. one half the major axis of the ellipse that one celestial body describes around another, as a planet around the sun or a satellite around a planet, equivalent to the mean distance between the two bodies.

Leave a Reply

Your email address will not be published. Required fields are marked *

45 queries 1.291