Sharpless 173 aka Sh2-173 in Cassiopeia - HaRGB

Sh2-173 HaRGB

Sharpless 173 is the large faint red nebula in the centre.

18/18/17 x 10 min each of RGB, 30x20min H-Alpha
Camera: Moravian G4 (16803) w Gen II Astrodon RGB and H-Alpha
Scope: Astrophysics AP155EDF Refractor w Focus Boss II
Mount: Paramount MX
Guiding SBIG ST402ME attached to a Borg 60mm guidescope
RGB and H-Alpha processing in PixInsight; Blend of H-Alpha w RGB and save-for-web in PS CC

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H-Alpha channel - 10 hours

Sh2-173 H-Alpha

Lucknow, Ontario
November 2022