IC 2118 - Witch Head Nebula in Eridanus

  Size: 2000 px      
© Velimir Popov & Emil Ivanov 2016
IC 2118 (also known as NGC 1909, VdB 36, DG 52, Ced 41, Hubble I 9, LBN 959, LBN 207.50-27.78, Magakian 93, or Witch Head Nebula due to its shape) is an extremely faint reflection nebula in constellation Eridanus, near to the border with Orion. It is believed to be an ancient supernova remnant illuminated by nearby supergiant Rigel. The distance from Earth is about 900 light-years. The dust particles, reflecting blue light better than red, are giving the cloud its blue color. The carbon monoxide emission of IC 2118 is an indicator of the presence of molecular clouds and star formation. A widefield of the Witch Head nebula can be seen here.


Image details:


Center of field RA 05:04:30 (h:m:s)
Center of field DE -07:16:36 (deg:m:s)
Size 1.95 x 1.29 (deg)
Pixel scale: 2.99 (arcsec/pixel)
Orientation: Up is 105 degrees E of N
Charts and image details obtained from Astrometry.net
Optic(s): ASA 12" Astrograph @ f/3.6 (Newton)
Mount: ASA DDM85 Standard
Camera: SBIG STL 11000 M
Filters: Luminance, Red, Green, Blue, Astronomik filters
Dates/Times: 3, 25Nov., 7 Dec 2016
Location: IRIDA Observatory, BG, longitude: E 24 44' 18", latitude: N 41 41' 42"
Exp. Details: L: 7x10, R:7x10 min, G:7x10 min, B:7x10 min, Bin 1, Total Exposure Time - 280 min. (4:40 h)
More details: Dark and flat frames reduction
Processing: PixInsight / PS
Copyright: Velimir Popov and Emil Ivanov 2013 - 2016. All Rights Reserved
e-mail: info@irida-observatory.org
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