NGC7331, Imaged with an
AP 10" f/14.6 Maksutov-Cassegrain
Image taken at prime focus with an AP 10" Mak-Cass, ST10E, 600sec exposure, 2x2 binning.
Processing - Digital Development in Maxim DL., mild unsharp masking in Photoshop.
Image by Roland Christen of Astro-Physics
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