4 articles for "Semi-Major/Minor Axis"

**Semi-Major Axis**[Astro*Index]

Half an ellipse's major axis. The distance from an ellipse's center to its furthest edge.

See also:

♦ Ellipse

**Semi-Major Axis**[Munkasey M.]

The distance, in an ellipse, from its center to itsfarthest edge. This measurement is used in Celestial Mechanics to determine the size of a Body's orbit. For the use of "a" as an abbreviaiton, see also: Right Ascension.

See also:

♦ Right Ascension ♦ Ellipse

**Semi-Minor Axis**[Astro*Index]

Half an ellipse's minor axis. The distance from an ellipse's center to its nearest edge.

See also:

♦ Ellipse

**Semi-Minor Axis**[Munkasey M.]

The distance, in an ellipse, from its center to itsclosest edge.

See also:

♦ Ellipse

Astro*Index Copyright © 1997 Michael Erlewine