Bright emission nebula Sh2-184. Located about 9,200 light-years away in the Perseus spiral arm, this image is about 80 light-years x 80 light-years. It is freaking massive, and if it was at the same distance from us as the Orion Nebula, it would be much larger and brighter than the moon.

http://bit.ly/2O7zKEj via /r/spaceporn http://bit.ly/35om5ya