Definition of semimajor axis in English:
Either of the halves of the major axis of an ellipse.
- The initial covariance matrices of each lander were set to correspond to a 15 by 8 kilometer landing ellipse with a semimajor axis in the East-West direction.
- The speed of the satellite is inversely proportional to the square root of the radius of the orbit (or more strictly the semimajor axis of the orbit).
- Kepler's third law of planetary motion says that the square of the planet's orbital period is proportional to the cube of its semimajor axis.
Definition of semimajor axis in:
- US English dictionary
What do you find interesting about this word or phrase?
Comments that don't adhere to our Community Guidelines may be moderated or removed.
Most popular in the US
Most popular in the UK
Most popular in Canada
Most popular in Australia