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abstraction > mathematical concept > frame of reference > rotating reference frame

rotating reference frame
subject			fact

rotating reference frame	is a kind of frame of reference
	has definition A frame of reference which rotates with the same period as the system.
frame of reference	has acceleration
	has rotation rate

Kinds of rotating reference frame :

• local standard of rest (5 facts) (LSR) - An imaginary point, located at the Sun's distance from the Galactic center, that revolves clockwise around the Galaxy on a circular orbit. Astronomers measure a star's U, V, and W velocities with respect to the local standard of rest rather than with respect to the Sun, because the Sun has a slightly noncircular orbit. The orbital velocity of the local standard of rest around the Galaxy is about 220 kilometers per second., 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.