Helix Nebula in HA+NII

[avandonk]

I cobbled together 18x16min and 5x32min of HA plus 5x64min of NII. Just averaged the frames weighted by exposure no rejection at all to produce a 32 bit stacked image.

Used HDRMT in PI and HDR reveal in StarTools to show the very bright detail.

Cropped image 1.5x1.5 degrees. 2.5 MB

http://d1355990.i49.quadrahosting.co...N_HA+NII_n.jpg

Inverted 2.5 MB

http://d1355990.i49.quadrahosting.co...HN_HA+NII_.jpg


There seems to be a faint halo all around that may come out better with many more long exposures.


Bert

[el_draco (Rom)]

I've been staring at this for 15 minutes... Pretty amazing detail there Bert!