| 单词 | diurnal parallax |
| 释义 | diurnal parallax (once / 2954828 pages) n WORD FAMILY diurnal parallax n the parallax of a celestial body using two points on the surface of the earth as the earth rotates Syn|Hypo|Hyper geocentric parallax horizontal parallax the maximum parallax observed when the celestial body is at the horizon solar parallaxthe angle subtended by the mean equatorial radius of the Earth at a distance of one astronomical unit parallax the apparent displacement of an object as seen from two different points that are not on a line with the object |
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