Perseus arm


Also found in: Wikipedia.

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.
Mentioned in ?
References in periodicals archive ?
In doing so, we'll look outward from our own Orion Spur to the neighboring Perseus Arm of the Milky Way.
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.
NGC 281 hovers roughly 1,000 light-years above the midplane of our galaxy's Perseus arm.
The average distance to the Messier and Caldwell open clusters is just over 3,000 light-years, but these four in Cassiopeia lie between 6,300 and 8,200 light-years away, in the Perseus Arm of the Milky Way.
NGC 2343 and NGC 2353 are much farther out, at 3,400 light-years, where our own Orion Spur points toward the Perseus Arm of the Milky Way.
However, we pick up the Perseus Arm once again in central Auriga with the complex containing the open cluster NGC 1893 and the emission nebula IC 410.
The Cassiopeia Window extends from just east of the famous variable star Delta ([delta]) Cephei all the way through Cassiopeia to the Perseus Double Cluster, which gives the Perseus Arm its name.
The new data suggest that the Orion Spur, once thought to be merely a hiccup between the Sagittarius and Perseus Arms (see the July issue's foldout), is more likely a full-fledged branch of the Perseus Arm.
But most of the clusters and nebulae in this area lie in the Perseus Arm, the next spiral arm out from our own.
light of the Double Cluster took flight from the Perseus Arm of our
Cas OB 6 resides within the Perseus arm of the Milky Way at a distance of roughly 7,500 light-years.
It lies about 5,900 light-years away in the Perseus Arm of the Milky Way Galaxy.