Thread: Do people use a filter for Jupiter?
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Old 17-02-2014, 07:23 PM
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sn1987a (Barry)
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Join Date: Dec 2007
Location: Rockingham WA Australia
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I use this Jupiter moons app from S&T which I think is very good. I find a blue filter helps with contrast on the GRS.

http://www.skyandtelescope.com/apps
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