The Rosette Nebula is a cloud of gas of ionized hydrogen and other atoms about 5000 light years away. This nebula is estimated to be about 65 light years across.
Ionized hydrogen gas is hard to capture with my unmodified DSLR camera due to the IR filter that’s typically built into consumer grade cameras. I ended up capturing 10.5 hours of data in February and March, and I tried processing the data many times to bring out the red. You can clearly make out the nebula and some of the structure within. But ultimately, I wasn’t entirely happy with how it came out – it looks over-processed and noisy to me.