Triaxial
From Wikipedia, the free encyclopedia
For the electronics term, see Triaxial cable.
A triaxial ellipsoid is an ellipsoid with all three axes having positive lengths, which cannot be neglected as insignificant. In other words, it is an ellipsoid with positive volume. On a triaxial ellipsoid, there are three diameters, generally referred to as equatorial, polar and side.
A triaxial spheroid is a triaxial ellipsoid with two of the axes having the equal length.
[edit] Usage
The word triaxial is used to emphasize that all axes have significant length. It is often used in astronomy, to describe the shape of galaxies or other objects.
[edit] See also
- Ellipsoids and Spheroids
- Oblate, Prolate, Scalene - Classification of shapes of a triaxial ellipsoid
- Box orbit - The orbit of a star belonging to a triaxial galaxy
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