argument of the perihelion concept from the Astronomy knowledge base

Astronomy View all facts Glossary Help

Next angle: azimuth Up: angle, orbital element Previous angle: angular size

argument of the perihelion
(ω, longitude of the perihelion)

subject fact

argument of the perihelion has symbol ω has source: Hopkins, J. 1976 Glossary of Astronomy and Astrophysics, University of Chicago Press, 2001-09-27 09:33:33.0
has synonym longitude of the perihelion
has definition An orbital element representing the longitude of the ascending node plus the angle along the orbit from the ascending node to the perihelion point. has source: Hopkins, J. 1976 Glossary of Astronomy and Astrophysics, University of Chicago Press, 2001-09-27 09:33:33.0
has definition Angular distance (measured in the plane of the object's orbit and in the direction of its motion) from the ascending node to the perihelion point.
is an instance of orbital element
is an instance of angle

orbital element is required to define the size, shape, and orientation of an orbit in space 2001-09-27 09:33:33.0
see also mean element
see also osculating element

angle has unit angle unit 2001-09-27 09:33:30.0

number has value 2001-09-27 09:32:57.0


*argument of the perihelion* (ω, longitude of the perihelion)
subject			fact

argument of the perihelion	has symbol ω
	has synonym longitude of the perihelion
	has definition An orbital element representing the longitude of the ascending node plus the angle along the orbit from the ascending node to the perihelion point.
	has definition Angular distance (measured in the plane of the object's orbit and in the direction of its motion) from the ascending node to the perihelion point.
	is an instance of orbital element
	is an instance of angle
orbital element	is required to define the size, shape, and orientation of an orbit in space
	see also mean element
	see also osculating element
angle	has unit angle unit
number	has value