IC 2118 known as Witch Head Nebula due to its shape, is an extremely faint reflection nebula believed to be an ancient supernova remnant or gas cloud illuminated by nearby supergiant star Rigel in Orion. It lies in the Eridanus constellation, about 900 light-years from Earth.
Image taken at Crear Skies of Mt Parnon, Peloponissos Greece, with a TS APO 65Q - 65mm f/6,5 Quadruplet Astrograph, with LRGB filters and 9 hours total exposure time. For more technical details please look in my site : http://astrofarma.gr/en/ic2118
Farmakopoulos Antonis