Image Description and Details :

It was discovered by William Herschel on November 13, 1790, describing it as "a most singular phenomenon" and forcing him to rethink his ideas on the construction of the heavensTelescope Astrosib RC 20" + camera FLI Kepler 4040Total HaLRGB=32h57mn each frame 3mn,no guidingThe skyX + Pixinsight In remote from fregenal de la sierra (Spain)



Copyright Information: Georges Chassaigne