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Old 18-09-2012, 05:01 PM
marmotte (Pierre)
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Join Date: Jun 2012
Location: sydney
Posts: 7
Not much contrast on Jupiter: simplest step to improve?

Hi all
A few months after having bought my first telescope, and after many very fine evenings of Saturn, Moon and a few DSO watching, I eventually managed to wake up early to have a look at Jupiter.
Whereas it was a very satisfying sight, I was a bit disappointed by the lack of contrast of the image. The focusing was sharp, and the image was very bright (too bright?), but colour bands were not really visible at all, the whole disc was a very bright yellowish colour, with barely any variations.
That was the case regardless of what EP I used, with or without barlow.

I hadn't cooled down the telescope for very long, but it was a warm night and inside temperature was not much more than outside...

I was wondering what would be the next stage to improve that ? I was plannign to buy a 5 or 6 mm TMB one of these days, but is there something lse that I could do before to improve this side of things?
THX
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