This is an Ha enhanced RGB image in that the Ha data was used to construct the luminance channel in an LRGB image. I did bias slightly toward the red over my normal color calibration.
Also, based on past comments, I did this without noise reduction. (Of course this object is fairly bright and has good signal to noise.)
Full size image and exposure / processing details are here:
http://jthommes.com/Astro/M17.htm
An older imade from two years ago - made without Ha data is here:
http://jthommes.com/MiscAstro/Archives/M17.htm
Also, based on past comments, I did this without noise reduction. (Of course this object is fairly bright and has good signal to noise.)
Full size image and exposure / processing details are here:
http://jthommes.com/Astro/M17.htm
An older imade from two years ago - made without Ha data is here:
http://jthommes.com/MiscAstro/Archives/M17.htm
Jim Thommes
Mak-Newt 152 mm
C8
Megrez II APO
Zenithstar 66 mm APO
G11/Gemini
ST8300M
Artemis285 Camera
Canon 350D DSLR
http://jthommes.com/Astro/