Methane in the atmosphere of Saturn's largest moon Titan. Most of the methane absorption bands show up to some degree, with those at 576 and 619nm most prominent.
Canon EOS 60D [Titan] A stack of 25 x 30s exposures, 150mm f/5 Newtonian, Star Analyser 100 grating, EOS 60D camera, aligned in PIPP and processed in RSpec.
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