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galactic equator
subjectfact 
galactic equatorhas definition The primary circle defined by the central plane of the Galaxy.has source: Hopkins, J. 1976 Glossary of Astronomy and Astrophysics, University of Chicago Press, 2001-09-27 09:32:37.0
is a kind of equator2001-09-27 09:32:37.0
planehas dimensions 22001-09-27 09:32:36.0