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Old 23-10-2018, 02:41 AM
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skysurfer
Dark sky rules !

skysurfer is offline
 
Join Date: Dec 2011
Location: 52N 6E (EU)
Posts: 1,150
Quote:
Originally Posted by Wavytone View Post
Good point - red filter certainly would be effective, ditto Polaroid sunglasses.
A polarizing filter does even better. These are even available to fit in eyepieces and make blue sky background a lot darker without darkening the star or planet, the most when 90 degrees from the Sun, even more than a red filter. Recently I purchaced one for this purpose.

https://www.bintel.com.au/product/bi...ser-1-25-inch/

Seeing stars from pits or mine shafts in daylight is a myth. Your eyes are adapted to the dark mine and the small piece of sky you see are far too bright.
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