Terry Robison
Horsehead Nebula
The Horsehead Nebula or Barnard 33 is a diffuse dark nebula located in the constellation Orion. It is about 1500 light-years away from us and is probably one of the most identifiable nebulae as it appears to look like a horse’s head. Its shape is simply the result of dust obscuring a direct line of sight to the bright red emission nebula IC 434.
The bright area in the left of the image originates from light spilling over into the frame from the very bright star Alnitak.
The image was captured on the 27th and 28th of December 2014 from the suburbs of Melbourne Australia. Equipment used RCOS 10” Telescope / STL-11000 CCD / Baader Ha Filter / Astro-Physics AP-900 Mount. Stacking and calibration in CCDStack, and image processing in Photoshop CS 6.
8 subs at 20 min running at -15 C 1X1 binning
5 subs at 35 min running at -15 C 1X1 binning
Terry
Horsehead Nebula
The Horsehead Nebula or Barnard 33 is a diffuse dark nebula located in the constellation Orion. It is about 1500 light-years away from us and is probably one of the most identifiable nebulae as it appears to look like a horse’s head. Its shape is simply the result of dust obscuring a direct line of sight to the bright red emission nebula IC 434.
The bright area in the left of the image originates from light spilling over into the frame from the very bright star Alnitak.
The image was captured on the 27th and 28th of December 2014 from the suburbs of Melbourne Australia. Equipment used RCOS 10” Telescope / STL-11000 CCD / Baader Ha Filter / Astro-Physics AP-900 Mount. Stacking and calibration in CCDStack, and image processing in Photoshop CS 6.
8 subs at 20 min running at -15 C 1X1 binning
5 subs at 35 min running at -15 C 1X1 binning
Terry