11 relations: Apsis, Argument of periapsis, Celestial mechanics, Longitude, Longitude of the ascending node, Mean longitude, Orbit, Orbital inclination, Orbital state vectors, Plane of reference, True longitude.
Apsis
An apsis (ἁψίς; plural apsides, Greek: ἁψῖδες) is an extreme point in the orbit of an object.
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Argument of periapsis
The argument of periapsis (also called argument of perifocus or argument of pericenter), symbolized as ω, is one of the orbital elements of an orbiting body.
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Celestial mechanics
Celestial mechanics is the branch of astronomy that deals with the motions of celestial objects.
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Longitude
Longitude, is a geographic coordinate that specifies the east-west position of a point on the Earth's surface.
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Longitude of the ascending node
The longitude of the ascending node (☊ or Ω) is one of the orbital elements used to specify the orbit of an object in space.
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Mean longitude
Mean longitude is the ecliptic longitude at which an orbiting body could be found if its orbit were circular and free of perturbations.
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Orbit
In physics, an orbit is the gravitationally curved trajectory of an object, such as the trajectory of a planet around a star or a natural satellite around a planet.
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Orbital inclination
Orbital inclination measures the tilt of an object's orbit around a celestial body.
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Orbital state vectors
In astrodynamics and celestial dynamics, the orbital state vectors (sometimes state vectors) of an orbit are cartesian vectors of position (\mathbf) and velocity (\mathbf) that together with their time (epoch) (t\) uniquely determine the trajectory of the orbiting body in space.
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Plane of reference
In celestial mechanics, the plane of reference (or reference plane) is the plane used to define orbital elements (positions).
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True longitude
In celestial mechanics true longitude is the ecliptic longitude at which an orbiting body could actually be found if its inclination were zero.
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Redirects here:
Longitude of periapse, Longitude of periapsis, Longitude of periastron, Longitude of pericenter, Longitude of perihelion.
References
[1] https://en.wikipedia.org/wiki/Longitude_of_the_periapsis