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Mark Killion

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Stephan’s Quintet image

Stephan’s Quintet

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Contains: Deep sky object
Acquisition Details
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Description

Re-submitting a few selected prior images. Here is Stephan’s quintet imaged 5-September 2021 from our club dark sky site in Midwest US under Bortle 4 sky. The whiter foreground galaxy is much closer than the main group at about 290 million light years distance. This is a SharpCap livestack of 174 10.3-second frames for 30 minutes total exposure time. As seen through my 14.5” Zambuto primary 1/20-wave Antares secondary in Starmaster hybrid truss Dob to ZWO ASI294MC pro at prime focus.