IC 4685 and IC 1274

  Click on the image for a full resolution version       See this image also on Instagram   IC 4685, located approximately 4,000 light-years away from our Sun, is an often overlooked emission nebula. It shines mostly in red, due to the excitation of hydrogen gas by energetic ultraviolet radiation from nearby hot young stars. … Continue reading IC 4685 and IC 1274