Quote:
Originally Posted by Stevec35
Interesting shot Steven. It seems to show the blue stars more prominently which is I suppose what you would expect.
Cheers
Steve
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That's correct Steve.
Blue stars of spectral type O and B have blackbody curves that peak in UV and therefore emit light in the NUV range.
It's the reason why I combined the NUV and B colour data which accentuated the blue colour in the image without wrecking the colour balance as NUV is progressively weaker in types A, F, G, K and M stars.
Clear skies
Steven