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The Great Nebula in Orion CFHT Palette, Terry Hancock

The Great Nebula in Orion CFHT Palette

The Great Nebula in Orion CFHT Palette, Terry Hancock

The Great Nebula in Orion CFHT Palette

Description

Here is a most unusual version of M42 "The Great Nebula in Orion" this time using the CFHT Palette (Canada France Hawaii Telescope) technique, the channels are assigned with H-Alpha = Red, OIII = Green and SII = Blue

Total Exposure time 12 hours.

Date of Shoot Nov 19th, 29th, Dec 3rd, 5th, 11th and 14th 2012

All exposures unbinned

H-Alpha, OIII, SII 7 x 30 min each

H-Alpha, OIII, SII 30 x 1 min each

QHY9M monochrome CCD cooled to -30C www.astrofactors.com

Thomas M. Back TMB 92SS F5.5 APO Refractor Astronomics

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

Clear Skies

Terry

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The Great Nebula in Orion CFHT Palette, Terry Hancock