Barnard 33, the Horsehead nebula, is a dark nebula located in IC 434, an emission nebula in Orion located about 1,500 light years from Earth. Dark nebula is an area of dense, thick dust, and from Earth, has the appearance of a horse's head. The pink nebula is IC 434, an emission nebula. The pinkish glow originates from hydrogen gas behind the nebula, which is ionized by the nearby bright star Sigma Orionis.
RGB data: 50 minute Red, Green and Blue (binned 2x2)
Ha: 5 hours (binned 1x1) using the 8 inch RCT.
Processedd in Photoshop CS5
Imaging telescope: Astro-Tech 8" Ritchey-Chrétien (FL 1625mm).
Imaging camera: QSI 683 wsg-8
Losmandy G-11 with Gemini II
Astrodon Tru-balance E-Series Generation II LRGB filters
Astrodon 5nm Ha filter