The Perseus OB Association of hot blue-white stars surrounding and including Mirfak at top. The star cluster at lower right is NGC 1245. Taken in a clear sky lit by a waxing gibbous Moon, thus the blue sky background. The 7.5° x 5° field of view is close to that of binoculars. This is a stack of 8 x 2-minute exposures at f/4.4 with the SharpStar 61mm EDPH refractor and Canon R6 at ISO 400. A separate exposure through an Alyn Wallace Starglow filter adds the glows.
The Pleiades and constellation of Perseus rising above the mountains at Waterton Lakes National Park, Aug 31, 2013. Capella is the bright star just over the ridge line. M33, M34, the Double Cluster are also visible at right. And the California Nebula, NCG 1499, below. A faint aurora adds the green and magenta tints. This is a stack of 4 x 3 minute exposures at f/2.8 with the 24mm lens and Canon 5D MkII at ISO 1600.
The Pleiades star cluster, Messier 45, amid the faint and dusty nebulosity that surrounds it. The stars of the Pleiades are passing through the dust clouds in Taurus and are lighting them up as examples of reflection nebulas. This is a stack of 8 x 8-minute exposures at ISO 400 with the Canon EOS Ra on the SharpStar HNT150 Hyperbolic Newtonian astrograph at f/2.8. Flat-fielded in PixInsight using T-shirt flats, and developed in Photoshop. Taken from home January 27, 2020.
