Faculty in the Field: Rosette Nebula

This shot is comprised of 1260 pictures totaling 10.5 hours of total imaging time. The Rosette Nebula is located approximately 5,200 light-years from Earth. It is a large cloud of ionized hydrogen gas. The vibrant red colors seen in images of the Rosette Nebula are primarily due to the emission of light from these hydrogen atoms. The nebula is estimated to have a diameter of about 130 light-years.