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eSky © copyright
Mark Fisher
1999-2008
Orion Arm
A relatively small spiral
arm
of the
Milky Way Galaxy
, some 3,500
light years
across. The
Sun
lies near its inner edge (that is, the edge nearest the
Galaxy's
core
), about half-way along the Arm's length.
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Main Index
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Related Entries
Milky Way
Monoceros
Orion
Orion's Belt
The Sun