(IAAC) Green Meteors and optical rods.

>>As for reds, I remember reading (probably in Roger Clark's book) that 
much of 
>what we often note as "pale green" is actually other colors (such as 
>stimulating the rods JUST over the threshold for color perception. This 
>is very common in meteor observing, where meteor "heads" or persistent 
>are most frequently seen as pale green, if color is seen at all.

I too had heard about this phenomena, but from my experience most 
coloured meteor trains I have seen have been a faint orange.  I can't 
remember seeing a green one.


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