An arc that glows green thanks to doubly ionized oxygen appears near the Andromeda Galaxy in a photo obtained by amateur astronomers.
The post Amateur Astronomers Find Glowing Gas Arc Near Andromeda appeared first on Sky & Telescope.
An arc that glows green thanks to doubly ionized oxygen appears near the Andromeda Galaxy in a photo obtained by amateur astronomers.
The post Amateur Astronomers Find Glowing Gas Arc Near Andromeda appeared first on Sky & Telescope.