(Click to enlarge) M57 C8 @ f/10 Canon Rebel XT (Modified) Baader UV/IR filter 50 x 60s exposures 9/21/2014 Poor conditions with variable transparency. Work In Progress - need better data. Background is very much compromised.
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(Click to enlarge) M57 C8 @ f/10 Canon Rebel XT (Modified) Baader UV/IR filter 50 x 60s exposures 9/21/2014 Poor conditions with variable transparency. Work In Progress - need better data. Background is very much compromised.
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