| 释义 |
Definition of radiant point in English: radiant pointnoun 1A centre point from which rays or radii proceed. Example sentencesExamples - The caustic of a cardioid, where the radiant point is taken to be the cusp, is a nephroid.
- 1.1Astronomy The apparent focal point of a meteor shower.
Example sentencesExamples - Generating a sky map on 8-12-2004, we find that the radiant point will be high in the northeastern sky, not far below the zenith.
- Much of the first part takes place at night, in a black and white symphony of moving radiant points and rich shades of darkness.
- The sickle is the western portion of Leo and that is the radiant point for the meteor showers.
- Trace some backwards: they all lead to a radiant point in the constellation Gemini.
|