IC 443, also known as Sh2-248 is a supernova remnant lying 5000 light-years from Earth in the constellation Gemini. The supernova occurred about 30-35,000 years ago and the shell of expanding debris resembles the bell a jellyfish with dangling tentacles.

Exposures: Ha:R:G:B = 495:55:55:55 minutes = 11 hours total exposure, completely unguided.