Amazing Sky by Alan Dyer

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Double Stars in Lyra

Epsilon, Delta and Zeta Lyrae in Moonlight (SS61 R6).jpg

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The binocular double stars in Lyra: Delta Lyrae at lower left, Epsilon Lyrae at top centre, and Zeta Lyrae between Delta and bright blue Vega. Surrounding Delta Lyrae is the sparse star cluster Stephenson 1. Epsilon Lyrae is the Double Double as each of its two stars splits again into two stars at high power in a telescope. The small cluster at upper left is Sal 8, with an unnamed asterism above it. 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.
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The binocular double stars in Lyra: Delta Lyrae at lower left, Epsilon Lyrae at top centre, and Zeta Lyrae between Delta and bright blue Vega. Surrounding Delta Lyrae is the sparse star cluster Stephenson 1. Epsilon Lyrae is the Double Double as each of its two stars splits again into two stars at high power in a telescope. The small cluster at upper left is Sal 8, with an unnamed asterism above it. 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. <br /> <br /> 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.