Star Subtraction with a Continuity Filter on Vela SNR

[avandonk]

Managed to get about 15x8 min frames with the 5nm Continuity Filter before cloud spoiled things.

Had a bit of a play by subtracting in Registar after getting the levels about correct. Then where the stars were there were now black holes.

I inverted the image in PS and used StarTools to fix these holes with the mask and heal tools.

Here is a result. 3MB

http://d1355990.i49.quadrahosting.co...VSNR_P1_CD.jpg


What is really useful is that this allows you to add NB to RGB without spoiling the star colours.

Here are the pair of registered images. They are unstretched tiffs. I did remove the gradient in the continuity image with Pixinsight. 28 MB


http://d1355990.i49.quadrahosting.co...1_NII_CONT.zip


Yes I get gradients even with a 5nm filter with my sky and FoV.


Bert

[multiweb (Marc)]

Superb vista Bert. Very spongy.

[tornado33]

Gee that's amazing. So much detail without stars to distract.
Scott

[cfranks (Charles)]

Another brilliant image, Bert. Did you mean the Continuum filter?

Charles