It is about 13,400 light years away from Earth, and can be seen with the naked eye, being bright enough to have been given a Flamsteed number with a visual magnitude of 4.0.
It is about 13,400 light years away from Earth, and 120 light years across. It can be seen with the naked eye, and it is bright enough to earn a Flamsteed number with a visual magnitude of 4.0.