I can calculate the motions of the heavenly bodies, but not the madness of people

— Sir Isaac Newton

nebulosity near Sadr (Cygnus)

By marzulloj at Sat, 11/12/2011 - 8:21am
nebulosity near Sadr (Cygnus)

Two hour h-alpha image of nebulosity near Sadr, the central star in Cygnus TOA-130 at F/7 and SXVH9 camera.