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What an interesting thread!
Alex, thanks a lot for this information. I too find using red light problematic whilst at my bortle 1 "site". I shall try a dimmer orange LED.
It makes a lot of sense that matching the exit pupil to the maximum size of your pupil helps with seeing colours in nebulae, as well as the other factors you mentioned. An "eye opening" thread indeed!
The Blue Planetary is the bluest object ive ever seen in the night sky. It's truly an amazing object.
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