 |
|
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
|
|
longitude of perihelion
The angle measured from the vernal equinox eastward along the ecliptic to the ascending node of a planet's orbit, and then continued eastward along the orbital plane to the perihelion. It is one of the orbital elements.
Related category
• CELESTIAL MECHANICS
Also on this site:
Encyclopedia of Alternative Energy & Sustainable Living
Encyclopedia of History
Transport Concepts & Designs (partner site)