Definitions | aphelion |
| noun (aphelia)
- The point in the elliptical orbit of a planet, comet, etc., where it is farthest from the sun.
Etymology: Greek form of aphelium, from Ancient Greek (polytonic, á) "from" (with o-elision) + (polytonic, á) "sun" (modelled after apogaeum). Compare parhelion.
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Full Definition of aphelion
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