co-moving coordinate concept from the Astronomy knowledge base

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co-moving coordinate

subject fact

co-moving coordinate has definition A set of coordinates which do not change in an expanding (or otherwise moving) medium. i.e. the coordinates of a distant galaxy do not change just because of the expansion of space. has source: Clark, S. 1997 Towards the Edge of the Universe, Wiley, 2001-09-27 09:32:41.0
has definition Coordinates fixed with respect to the overall Hubble flow of the universe, so that they do not change as the universe expands. has source: Hawley, J.F., Halcomb, K.H. 1998 Foundations of Modern Cosmology, Oxford University Press, 2001-09-27 09:32:41.0
is a kind of coordinate

coordinate has component coordinate component 2001-09-27 09:32:38.0

point has dimensions 0

co-moving coordinate	has definition A set of coordinates which do not change in an expanding (or otherwise moving) medium. i.e. the coordinates of a distant galaxy do not change just because of the expansion of space.
	has definition Coordinates fixed with respect to the overall Hubble flow of the universe, so that they do not change as the universe expands.
	is a kind of coordinate
coordinate	has component coordinate component
point	has dimensions 0