Quote:
Originally Posted by Paul Haese
Actually that is not strictly correct Paula.
I have seen colour in M42 through a 22" telescope and several other PN's with red and blue/purple.
My mother and father witnessed aurora as children in South Australia during the 56-58 maximum. The aurora extended to the zenith and according to them ranged from green to red to purple and it all happened on many nights.
In short the colour seen is due to the intensity of the light entering the eyes. Colour is often seen in large telescopes because the light is very bright and that triggers the colour being seen in the eye. Aurora are the same, this cycle has been quite subdued and so the storms have been not bright. If we had KP8 or KP9 displays with a good south BZ, then we would be witnessing colour too.
So for the most part you are correct but there are exceptions.  |
I Agree with you Paul, I can actually see a green colour in M42 but it's not like you see in advertised pictures selling telescopes.
