Concept information
Preferred term
Argument of perihelion
Definition
- The angular distance between the ascending node of an object orbiting the Sun and its perihelion. Argument of perihelion is measured in the orbital plane with respect to the Sun and in the direction of motion. It is one of the orbital elements and usually shown with the symbol ω. (en)
Broader concept
- Orbital elements (en)
Editorial note
URI
http://astrothesaurus.org/uat/66
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