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View Full Version here: : Helix Nebula in HA+NII


avandonk
18-04-2014, 12:15 PM
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.com.au/2014_04/HN_HA+NII_n.jpg

Inverted 2.5 MB

http://d1355990.i49.quadrahosting.com.au/2014_04/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
18-04-2014, 12:33 PM
I've been staring at this for 15 minutes... Pretty amazing detail there Bert!:eyepop: