Re: (IAAC) Colour in M27

Penny, Nick and others,
Some of my entries for M57 read 'distinct greenish tinge'; one of these 
observations was through a 4.5" reflector, and the others were through a 
220mm f/5 Newtonian.
Clear skies,
>>I've seen color in M57 also. lime green... none others I can recall, 
>red naked eye in M42 and I can see nebulosity in M45:).
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