galactic longitude concept from the Astronomy knowledge base

Astronomy View all facts Glossary Help

abstraction > mathematical concept > number > quantity > angle > galactic longitude

Next angle: half-power beamwidth Up: angle, galactic coordinate component Previous angle: galactic latitude

galactic longitude

subject fact

galactic longitude has definition A measure of a star's position with respect to the Sun and Galactic center. Galactic longitude ranges from 0 degrees to 360 degrees. Imagine the Sun at the center of a giant clock, with the Galactic center located in the direction of six o'clock. A Galactic longitude of 0 degrees would correspond to the direction of six o'clock, a Galactic longitude of 90 degrees to the direction of three o'clock, a Galactic longitude of 180 degrees to the direction of twelve o'clock, and a Galactic longitude of 270 degrees to the direction of nine o'clock. has source: Croswell, K. 1995 The Alchemy of the Heavens, Anchor Books, 2001-09-27 09:33:32.0
is an instance of galactic coordinate component
is an instance of angle

galactic coordinate component is a component of astronomical coordinate

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

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

galactic longitude	has definition A measure of a star's position with respect to the Sun and Galactic center. Galactic longitude ranges from 0 degrees to 360 degrees. Imagine the Sun at the center of a giant clock, with the Galactic center located in the direction of six o'clock. A Galactic longitude of 0 degrees would correspond to the direction of six o'clock, a Galactic longitude of 90 degrees to the direction of three o'clock, a Galactic longitude of 180 degrees to the direction of twelve o'clock, and a Galactic longitude of 270 degrees to the direction of nine o'clock.
	is an instance of galactic coordinate component
	is an instance of angle
galactic coordinate component	is a component of astronomical coordinate
angle	has unit angle unit
number	has value