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Maybe, if the observer's eye was sensitive enough (otherwise, probably not). I have only seen the typical bluish-green color in my 10 inch (but 36 inches is a lot of aperture).

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The maps of OIII and Ha emissions shows that the ratio Ha/OIII is greater at the centre than in the outer shell. The fringe is greener than the centre. So: if one sees geen the centre it must cannot see the fringe reddish regardless how much sensitive he is to red (the first red he should see should be at the centre).

The theory that observed colors are necessarily real is dead. This, besides the ears of M27, is a proof of false color percetion at a relatively high brightness. What hiopes remain? IC418 is much redder, so if real red is see that should happen there. Let us see if it is visible in Halpha. As for M42, the brightness levels where red is seen are similar to those of rthe above false colors. Unfortunately those regions are red so we cannot discriminate between false color perception and real perception based on the perceived color. But we only have to wait the ha test.

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