The point in the path of a celestial object or spacecraft orbiting around a centre at which it is nearest to the centre. Opposed to apocentre, n.
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| 单词 | θ228 |
| 释义 | the world > the universe > heavenly body > movement of heavenly bodies > [noun] > movement in orbit > orbit > eccentric > parts of (2) pericentre1875 The point in the path of a celestial object or spacecraft orbiting around a centre at which it is nearest to the centre. Opposed to apocentre, n. apocentre1901 Astronomy. The point in the eccentric orbit of a body at which it is most distant from the body or point around which it moves. |
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