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M56 Stack 18frames 270s

M56 Stack 18frames 270s

M56 observed with an 8 inch Meade 2080 on a wedge tracking mount. ZWO ASI-240 mc. 0.63 reducer spaced to about f5.5. 18 15-second exposures. Darks subtracted. Saved as viewed in SharpCap. Camera mounted via a less that optimal 1.25 inch visual back causing some vignetting.

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