IC 2118 (also 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. The nature of the dust particles, reflecting blue light better than red, is a factor in giving the Witch Head its blue color. Radio observations show substantial carbon monoxide emission throughout parts of IC 2118 an indicator of the presence of molecular clouds and star formation in the nebula. In fact candidates for pre-main sequence stars and some classic T-Tauri stars have been found deep within the nebula.
Imaging telescopes or lenses: Takahashi FSQ106ED
Imaging cameras: QSI 6120i
Mounts: Takahashi EM 200 Temma 2
Guiding telescopes or lenses: QHY Mini Guide Scope
Guiding cameras: QHY CCD QHY 5 L II
Focal reducer: Takahashi QE 0.73x
Software: PHD 2, Pleiades Astrophoto PixInsight , Sequence Generator Pro SGP
Filters: Astronomik LRGB
Accessories: Robofocus Focuser, ATIK EFW2
Original Resolution: 3735 x 2394
ates: 30th Jan - 1st Feb '17
Frames:
Astronomik Lum: 24 x 300"
Astronomik RGB: 36 x 300"
Integration: 4 Hours .
Center (RA, Dec):(76.358, -6.982)
Center (RA, hms):05h 05m 25.846s
Center (Dec, dms):-06° 58' 53.657"
Size:1.29 x 1.7 deg
Radius:1.070 deg
Pixel scale:1.66 arcsec/pixel
Orientation:Up is -10.7 degrees E of N
Imaging telescopes or lenses: Takahashi FSQ106ED
Imaging cameras: QSI 6120i
Mounts: Takahashi EM 200 Temma 2
Guiding telescopes or lenses: QHY Mini Guide Scope
Guiding cameras: QHY CCD QHY 5 L II
Focal reducer: Takahashi QE 0.73x
Software: PHD 2, Pleiades Astrophoto PixInsight , Sequence Generator Pro SGP
Filters: Astronomik LRGB
Accessories: Robofocus Focuser, ATIK EFW2
Original Resolution: 3735 x 2394
ates: 30th Jan - 1st Feb '17
Frames:
Astronomik Lum: 24 x 300"
Astronomik RGB: 36 x 300"
Integration: 4 Hours .
Center (RA, Dec):(76.358, -6.982)
Center (RA, hms):05h 05m 25.846s
Center (Dec, dms):-06° 58' 53.657"
Size:1.29 x 1.7 deg
Radius:1.070 deg
Pixel scale:1.66 arcsec/pixel
Orientation:Up is -10.7 degrees E of N
Sky plot
Annotated Image