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The Sagittarius arm.
Sagittarius arm
It is called the local spur arm. as we are not directly on the arm of a galaxy just between the sagittarius and perseus arms.
3-kpc and Perseus Arm
Norma and Outer arm (Along with a newly discovered extension)
Scutum-Centaurus Arm
Carina-Sagittarius Arm
There are at least two smaller arms or spurs, including:
Orion-Cygnus arm (which contains the Sun and Solar System).
Sagittarius