Celestial hemisphere:  Northern  ·  Constellation: Andromeda (And)  ·  Contains:  NGC 891
NGC 891 single exposure, Bruce Van Deventer
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NGC 891 single exposure

NGC 891 single exposure, Bruce Van Deventer
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NGC 891 single exposure

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Description

NGC891, single 300 second exposure, ISO3200, manually guided. This was processed in photoshop via the Adobe .DNG converter. Flat fielding was done in Photoshop. The flat is a daylight 1/200 second exposure at ISO 200, through the same optical system, then inverted and then applied to the base image as a multiply layer. Also this is a full frame uncropped image (you can see some vignetting). There was also some fogging on the corrector so it was the last image of the night!

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NGC 891 single exposure, Bruce Van Deventer