Jupiter 18th June Europa transit

[Lester]

Had to put up a fresh Jupiter.

First at 10fps and second at 5fps both with gain at 80% to keep the onion truck at bay.

Used cat cooler for the first time. Although I didn't test image before and after cooling internally, my opinion is that image was relatively steady for such a night. Stars twinkling like hazard lights at 6:30 and starting to settle down a bit by 7:30.

Comments always welcome.:thumbsup:

[asimov]

Lovely colours & 3D look! The 5FPS one wins to my eyes.

Weird conditions tonight..Jupiter looks like its boiling yet nice details present.

I wasn't going to image tonight, but I had to find out seeing conds. via the laptop; by the time I go to that trouble I may as well fire a few off.

Well done.

[Rigel003]

The 2nd one's great Lester. How long did the cooler take to cool the telescope? My C11 can take up to 2 hours to adjust.

Graeme

[asimov]

Speaking of cooling Lester, I came across an idea yesterday which I implimented tonight. Seems to work, making my SCT cooler obsolete.

[Lester]

Hi Graeme,

I had the cooler running for just over an hour. The tube internally was still 1.8 degrees above ambient, as the outside temp was dropping quickly.

[Lester]

Thanks Asi,

Do you like the second image best because its less green? I thought there was more detail in the first one.

Are you going to spill the beans on the new cooling idea?

[asimov]

Nope, nothing to do with the colours, no horizontal lines in the 5 framer.

In a word: nope. It will take quite a few horses to pry this cooling info outa O'l Asi....:D

[Astroman]

He fills the OTA up with ice a day before he is ready to image, by then the ice has melted away leaving a nice cool mirror.

BTW the second is better IMO. But with conditions the way they are it would have been hard pulling any more detail, unless you were very lucky.

[Robert_T]

Nice pair you've got there Lester. I can't really separate them. Both have some nice features. :thumbsup:

[Lester]

Thanks Andrew and Robert,

If the seeing improves before the soccer comes on a 2am I may try again, but no promises.