Summer Triangle

The “Summer Triangle” is a once-seen-never-forgotten asterism and is very easy to pick out at the moment.  I attempted a wide-angle image on Sunday night, which featured in the Observing Evening presentation after some quick processing.

Wide-angle astrophotos need a very different approach to processing, especially with light pollution that catches the moisture in the air and casts a colour gradient across the image.  Here is the more carefully processed version.

As well as the three stars making up the Summer Triangle, (clockwise Deneb in Cygnus, Vega in Lyra and Altair in Aquila), against the background of the Milky Way, you can pick out the smaller constellations of Delphinus and Sagitta, together with the “Coathanger” asterism – which looks spectacular through the telescope.



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