IC 2118 (Witch Head Nebula)

IC 2118 (also known as Witch Head Nebula) lies in the constellation of Eridanus, about 900 light-years from Earth.It is faint reflection nebula believed to be an ancient supernova remnant or gas cloud illuminated by nearby supergiant star Rigel. The nature of the dust particles, reflecting mostly the blue light is a factor in giving the Witch Head its bluish color.


Object Details:

Object: IC 2118
Constellation: Eridanus
Center of field: R.A. 05h, 05m, 30s. ; DE. +08°, 21', 00"
Field dimensions: Apr. 120 x 180 '


Technical Details:

Optics: 420mm Canon lenses at F/4.0
Mount: ASA DDM 85
Camera: SBIG STL-11000M
Filters: Astronomik LRGB filters, Baader Ha 8 nm filter
Dates/Times: 30 October 2011
Location: Rozhen
Exposure Details: L = 50 min, R = 40 min., G = 40 min.,B = 40 min.; Ha = 60 min
Subexposures: LRGB 10 minutes, Ha 15 minutes
Acquisition: CCD Soft
Processing: PixInsight, Photoshop CS

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