Secret Still Observatory

'I saw the crescent, you saw the whole of the Moon'

Seeing and Transparency Scales

From the Webb Deep Sky Society 'An Introduction to Visual Deep-Sky Observing'

Mark

1 minute read

The scale below has been reversed from the Webb Society scale which puts excellent values at 1 and poor values at 5 in order to match Meteoblue. However the exact decriptions may not tally exactly with the Meteoblue astronomers’ forecast. To be monitored.

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