The forces of rotation caused red hot masses of stones to be torn away from the Earth and to be thrown into the ether, and this is the origin of the stars.

— Anaxagoras 428 BC

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.