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NGC 4631
(click for higher resolution image)

Optics: AG Optical 12.5" iDK @ f/6.7 l=2130mm
Camera: QSI 683wsg @ -25C
Filters: Astrodon Tru-Balance Gen 2 E Series LRGB
Mount: Astro-Physics AP 1100GTO
Guiding: OAG with Starlight Xpress Lodestar X2 Guider / PHD2 Guiding
Location: North Attleboro, Massachusetts
12.8 hours exposure over 10 nights, 2015-04-21 - 2015-05-22
L:R:G:B 6h40m:1h40m:2h10m:2h20m (40x10m : 10x10m : 13x10m : 14x10m) binned 1:2:2:2
Captured with Sequence Generator Pro
Processed with PixInsight and Photoshop CS6