apsis
IPA: ˈæpsɪs
noun
- (architecture) A recess or projection, with a dome or vault, at the east end of a church; an apse.
- (astronomy) Either of the points in the elliptical orbit of a planet, comet, or moon where it is closest or furthest from the body it orbits; examples are perihelion, aphelion, perigee, and apogee
Advertisement
Examples of "apsis" in Sentences
- The spacecraft reached its apsis, the point farthest from Earth in its orbit
- The apsis of the moon's orbit is known as the apogee when it is farthest from Earth
- The satellite's perigee marks the closest point to Earth in its apsis
- The apsis of the comet's trajectory brought it dangerously close to the sun
- The apsis of the planet's orbit around its star determines its distance and speed at different points in its revolution
Advertisement
Advertisement