Totally uncharted territory for combining colour with a UV image.
The colour image enhances the differences with "conventional" M42 images.
2hrs L= UV pass (340-400nm) 0.5 hrs R, 0.5hrs G, 0.5 hrs B
Scope BRC-250 ST-X10ME CCD
High resolution image.
http://members.iinet.net.au/~sjastro/M42uv_colour.html
Clear skies
Steven