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Old 13-04-2009, 08:02 AM
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Lester
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Join Date: Jan 2006
Location: E.P. S.A.
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13th April Jupiter

Me again,

yes with another Jupiter. For the first time the ambient temp was more than 2 degrees colder than the primary mirror; which was 6 degrees above. So I will have to begin cooling my scope from now on. This means getting up 2 hours before imaging to give the cooler time to do its job.

Seeing was very steady, but the temp difference caused a slightly fuzzy image.

2 images= one without extention tube and one with.
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