In the footsteps of Ebenezer Porter Mason and his nebulae

Jeremy Shears, Carl Knight, Martin Lewis +3

In 1839 Ebenezer Porter Mason (1819-1840) produced detailed drawings of the Omega Nebula (M17), the Trifid Nebula (M20) and the eastern part of the Veil Nebula (NGC 6992 and 6995).…