longitude of the periapsis (Q6447)
longitude (measured from the point of the vernal equinox) at which the periapsis (closest approach to the central body) would occur if the body's inclination were zero
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | longitude of the periapsis |
longitude (measured from the point of the vernal equinox) at which the periapsis (closest approach to the central body) would occur if the body's inclination were zero |