here's the new version that attempts to replicate the nebular color seen in
an RGB image
"Richard Crisp" wrote in message
. ..
Stefan brought up how the synthetic hbeta rendition of the NGC7K widefield
made using Halpha and [OIII] resembled an RGB nebula
using the same idea but including the [SII] line, I made another such
pseudo-true color image of the Veil region.
in this current case this prescription was used
Red = Ha + 30% [SII] (because the [SII] is in the red spectrum and also is
weak compared to the Halpha)
Green = [OIII]
Blue = [OIII] + Hbeta
Hbeta = 30% * Halpha (approximating the natural 2.92:1 ratio of Ha to Hb)
I took the previous image, disassembled it and reassembled it according to
the prescription above
Here's the updated webpage with the non-downsized resolution versions
linked:
http://www.narrowbandimaging.com/vei...ao3s2_page.htm