M51, Messier 51, the Whirlpool Galaxy
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Optics: GSO RC10 at f/8, l=2000mm
Camera: QSI 683wsg @ -25C
Filters: Astrodon Tru-Balance Gen 2 E Series LRGB
Mount: Losmandy G11-G2 with Ovision Worm on RA
AO: Starlight Xpress Active Optics SXV-AO-LF
Guiding: OAG with Starlight Xpress Lodestar Auto Guider / PHD2 Guiding
Location: North Attleboro, Massachusetts
~17 hours exposure over 5 nights, 24 Feb - 3 Mar 2014
L:R:G:B 8h20m:2h50m:2h55m:2h50m, 203 5m subs binned 1:2:2:2
Captured with Sequence Generator Pro
Processed with PixInsight and Photoshop CS6