Algol, the Demon Star, accompanied by other "demon" stars of the Gorgon as the triangle below Algol, from R to L: Gorgonea Secunda, Gorgonea Tertia, a

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Algol, the Demon Star, accompanied by other "demon" stars of the Gorgon as the triangle below Algol, from R to L: Gorgonea Secunda, Gorgonea Tertia, and Gorgonea Quarta. All in Perseus. Taken in a clear sky lit by a waxing gibbous Moon, thus the blue sky background. The ° x 5° field of view is close to that of binoculars. This is a stack of 8 x 2-minute exposures at with the SharpStar 61mm EDPH refractor and Canon R6 at ISO 400. An exposure through an Alyn Wallace Starglow filter adds the glows.

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Size: 5400px × 3593px
Photo credit: © Alan Dyer / VWPics / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 61mm, algol, astrophotography, binoculars, canon, demon, edph, filter, fov, gorgon, gorgonea, perseus, photography, r6, science, sharpstar, sky, star, starglow, stars, stellar, universe, variable