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On Thu, 13 Sep 2001 15:25:14 -0500 James Watson <00j0watson@BSUVC.BSU.EDU>
writes:
> Student question ... Is a lightyear a metrci unit?? > No. A lightyear is not a metrci unit in the cgs,
MKS
fps or in any other currently popular syatem
favored
by most physicists.
It is used by astronomers in their own system of
parsecs, right angle ascensions, declinations,
orbits, orbitals, magnitudes, oblate spheroids,
and black holes.
Herb
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