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The Veil Nebula in Cygnus is the circular remnant of a colossal supernova explosion sometime at least 10,000 years ago. Here, we see the western portion, viewed in false color where red represents hydrogen glowing at its characteristic 656-nm wavelength, green is sulfur, and blue oxygen. The radiation from the bright star at top center, 52 Cygni, ionizes the elements and makes them glow.
Taken with a three-inch refractor over a pair of fall nights in 2021, this image represents just under six hours of total exposure time, including an hour or two of broadband color images for star color.
The Veil Nebula in Cygnus is the circular remnant of a colossal supernova explosion sometime at least 10,000 years ago. Here, we see the western portion, viewed in false color where red represents hydrogen glowing at its characteristic 656-nm wavelength, green is sulfur, and blue oxygen. The radiation from the bright star at top center, 52 Cygni, ionizes the elements and makes them glow.
Taken with a three-inch refractor over a pair of fall nights in 2021, this image represents just under six hours of total exposure time, including an hour or two of broadband color images for star color.