Hubble Palette

The Orion Nebula (Messier 42) is one of the most impressive astronomical objects to capture by CCD. Most images of it are captured using the standard RGB palette. Not to be outdone, I’ve attempted to create a stacked image using different wavelength filters, essentially mimicking what’s been dubbed the Hubble palette.

This image was taken using three 120 second exposures on Lightbuckets LB-0003 with the following filters:

  • Hydrogen-Alpha in Green
  • Sodium II in Red
  • Oxygen III in Blue

I used MaximDL to stack, align and screen stretch. Then I used Gimp to add weight to the Red channel, which brings out all the yellows and colour details. Not bad for my first attempt using such a short exposure. MaximDL is awesome!

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