Orion spur

Orion spur

[ə′rī·ən ′spər]
(astronomy)
That portion of the Orion arm within which the sun is located.
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.
The sun lies in a small partial arm, dubbed the Orion Spur, between the Sagittarius and Perseus arms.