The Great Nebula in Orion Natural/False Color Hybrid, a photo by Terry Hancock www.downunderobservatory.com on Flickr.
An amazing colorful depiction of Great Nebula in Orion. How it is achieved can be found in the details below
Detail via Flickr:
Yes yet another version of M42 "The Great Nebula in Orion" this time I have combined the natural color of RGB filters together with the narrow band using HST (Hubble Palette) formula with SII assigned to red channel, H-Alpha to green channel and OIII to blue channel with what I think gives a very interesting result.
I have to say my previous image hubble palette version is a bit of a dissapointment but unfortunately when we apply the narrow band colors from filters according to the Hubble type of palette this is the result and to some it looks like candy and very un naturale. Of course the end result is much dependant on data and processing. You should see what it looks like in CFHT palette…forget it, I am too embarrased to post it.
My conclusion is that for me The Hubble Palette works very well on some objects but on others like M42 not so well. Again it is a matter of personal opinion and taste.
Shooting with these narrow band filters together with LRGB allowed me to create this false/natural color hybrid which introduced color and detail not visible in natural RGB wavelengths using my equipment.
183 individual frames make up this final image for a Total Exposure time 17.8 hours.
Date of Shoot January 2012 thru Dec 2012 (over 11 nights)
Location: Fremont MI USA
All exposures unbinned
H-Alpha, OIII, SII 7 x 30 min each
H-Alpha, OIII, SII 30 x 1 min each
8 x 600 sec each RGB
3 x 300 sec each RGB
10 x 60 sec each RGB
15 x 20 sec each RGB
3 x 300 sec each LUM
10 x 90 sec LUM
10 x 60 sec LUM
15 x 20 sec LUM
30 x 5 sec LUM
Camera: QHY9M monochrome CCD cooled to -30C www.astrofactors.com
Optics: Thomas M. Back TMB 92SS F5.5 APO Refractor Astronomics
Mount: Paramount GT-1100S German Equatorial Mount (with MKS 4000)
Image Aquisition Maxim DL
Stacking and Calibrating: CCDStack
Registration of images in Registar
Post Processing Photoshop CS5