NGC 7538, near the more famous Bubble Nebula, is located in the constellation Cepheus. It is located about 9,100 light-years from Earth. It is home to the biggest yet discovered protostar which is about 300 times the size of the Solar System.
Taken at "Stellar Winds Observatory" a/k/a Stan Watson Observatory at Dark Sky New Mexico
Telescope: Planewave 17" f6.7 on a Planewave HD Mount. Camera: SBIG 16803 Exposure: 300 min Luminance, 300 of each RGB, 500 min HA, 300 min S2 and, 1000 min O3.