Helix nebula dataset. The Helix Nebula (also NGC 7293 or Caldwell 63) is a planetary nebula located in the constellation Aquarius. It is one of the closest to the earth of all the bright planetary nebulae.
120 frames of 1 minutes in RGB and 75 frames of 5mn in Narrow band (6:15 minutes of NB integration). The 2 images below show basic processing done on this dataset. Use the Gain 90 calibration frames provided below.