Location of photoPorto Alegre, Brazil
Date/Time of photo07/14/07
EquipmentNexstar 5i at f/5 with focal reducer and Stellacam II.
DescriptionThis beautiful nebula(named M57) is actually an expanding shell of gas thrown off explosively by a dying star, which is barely visible at the center of the ring.
Stack of 17 exposures.Camera settings: 256 frame integrations, gain 50% and gamma set on low.