Perseus Arm
One of two major spiral arms of the Milky Way galaxy / From Wikipedia, the free encyclopedia
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The Perseus Arm is one of two major spiral arms of the Milky Way galaxy. The second major arm is called the Scutum–Centaurus Arm. The Perseus Arm begins from the distal end of the long Milky Way central bar.[1] Previously thought to be 13,000 light-years away, it is now thought to lie 6,400 light years from the Solar System.[2]