What is the current classification assigned to the Orion Arm relative to the Milky Way's larger structures?

Answer

A minor spiral arm or a spur

The text specifies that the Orion Arm is considered a minor spiral arm or a spur extending from a larger feature.

What is the current classification assigned to the Orion Arm relative to the Milky Way's larger structures?

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Which Spiral Arm Of The Galaxy Is Ours? - YouTube

galaxyastronomysolar systemMilky WayOrion Arm