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Old 26-04-2009, 04:14 PM
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Paul Haese
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Join Date: Jan 2009
Location: Adelaide
Posts: 9,991
Lester, you will find that using a 2x and a filter wheel will produce a very large image scale on the screen. At last years opposition I had around 15-20 pixels each side of the planet in the 480 height. Given that this years opposition Jupiter will be around 49 arc seconds and then the next 2 will be 50" using anything above a 2x barlow will be not viable.
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