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 ?
Our solar system is located about two-thirds of the way out from the Milky Way's center, in the Orion Spur, an offshoot of the Perseus spiral arm.
Since there's a window through nearby dust clouds here, what we see in this direction are not the stellar associations, clusters, and nebulae of our own spiral arm, but those of the next spiral feature out: the Perseus Spiral Arm.
The nebula is located in the Perseus spiral arm of the Milky Way, the next arm out from ours.
found a way to test these ideas during their recent survey of the Milky Way's Perseus spiral arm.