M31 Hydrogen-alpha emissions
Mouse-over to explore H-alpha emission nebulae in M31.
Optics: Stellarvue 115 f/7, Stellarvue 0.8x Flattener/Reducer
Camera: QSI 683wsg @ -21C
Filter: Astrodon H-alpha 5nm
Mount: Astro-Physics AP 1100GTO
Guiding: OAG with Starlight Xpress Lodestar Auto Guider / PHD2 Guiding
Location: North Attleboro, Massachusetts
23 hours exposure over 4 nights, 14-20 September 2015
69 20 min subs, 2-panel mosaic
Captured with Sequence Generator Pro
Processed with PixInsight
