local standard of rest Comparison Table

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local standard of rest comparison table

Subject has acronym is a kind of has rotation rate has definition

rotating reference frame frame of reference A frame of reference which rotates with the same period as the system.

local standard of rest LSR rotating reference frame equal to one complete orbit of the Sun around the Milky Way A frame of reference in which the mean motion of stars in the immediate neighborhood is zero. In such a reference system, the motions of stars in the solar neighborhood (a volume of space about 100 pc in diameter) average out to zero (cf. solar motion). It is a coordinate system in which the origin is a point in the galactic plane moving in a circular orbit around the galactic center, and in which the three velocity components are Π, in the direction from the galactic center to the origin; θ, in the direction of galactic rotation; and Z, perpendicular to the galactic plane.

Subject	has acronym	is a kind of	has rotation rate	has definition
rotating reference frame		frame of reference		A frame of reference which rotates with the same period as the system.
local standard of rest	LSR	rotating reference frame	equal to one complete orbit of the Sun around the Milky Way	A frame of reference in which the mean motion of stars in the immediate neighborhood is zero. In such a reference system, the motions of stars in the solar neighborhood (a volume of space about 100 pc in diameter) average out to zero (cf. solar motion). It is a coordinate system in which the origin is a point in the galactic plane moving in a circular orbit around the galactic center, and in which the three velocity components are Π, in the direction from the galactic center to the origin; θ, in the direction of galactic rotation; and Z, perpendicular to the galactic plane.

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