Perseus arm


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Perseus arm

See Galaxy.

Perseus arm

[′pər·sē·əs ‚ärm]
(astronomy)
A spiral arm of the Milky Way galaxy visible in the constellation Perseus, located (as viewed from the earth) in the direction opposite that of the galactic center.
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References in periodicals archive ?
W3 is a giant molecular cloud containing an enormous stellar nursery, some 6,200 light-years away in the Perseus Arm, one of our Milky Way Galaxy's main spiral arms.
The sun lies in a small partial arm, dubbed the Orion Spur, between the Sagittarius and Perseus arms.