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General astronomy
Industry: Astronomy
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General astronomy
apogalacticon
Astronomy; General astronomy
The point in a star's orbit farthest from the Galactic center.
apogee
Astronomy; General astronomy
The point at which a body in orbit around the Earth reaches its farthest distance from the Earth.
apparent magnitude
Astronomy; General astronomy
1) A measure of how bright a star looks in the sky. The brighter the star, the smaller the apparent magnitude. A star that is one magnitude brighter than another (e.g., +1 versus +2) looks 2.5 times ...
apsidal motion
Astronomy; General astronomy
Rotation of the line of apsides in the plane of the orbit; (in a binary) precession of the line of apsides due to mutual tidal distortion.
