[AZ-Observing] Re: Sun Spot

I've noticed the same phenomena while viewing prominences with my 40 mm 
hydrogen alpha filter. At first only the most intense flares are visible, but 
the 
longer I observe, the more detail becomes apparent and smaller and fainter 
features become visible. I don't believe it's seeing. It seems to be a function 
of 
time. The longer you observe, the more detail you get. Probably psychological 
as the mind begins to ignore the overall view and search for aberrations in 
the field.    Jeff Vandecar

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