New Image: Jupiter 10/11/23

[Graeme1858]

Here's my go at Jupiter from last night. I got a good collimation and focus. Due to lack of stars in the FOV I went old school and focused on a single bright star with my Bahtinov mask. I wanted to wait till 23:00 when the GRS would have rotated into view. But by 22:00 the humidity was in the high 90s and I lost my connection to the mount. I had 5 x videos at 14ms to 18ms exposure. So this is the best 20% of the 18ms version, a 5000 frame SER, saved as a tiff in AS3 then saved as a PNG to get the file size down. Trouble is the file size reduction is too great and some of the detail is lost. Europa, Ganymede and Io are clearly visible in the TIF, they're just visible if you click on the image.

There was a Ganymede shadow transit at 02:00 but the humidity was on the verge of becoming mist by then! Think I'll try again with the ASI294MC and a 2x barlow. The ASI224 is far too over sampled. I'll save that camera for an all sky project!

Graeme

[Juno16]

Really cool image Graeme!
I would love to try planetary, but I nowhere near have the fl.
I would do much better with lunar and might give that a whirl one day!

[messier 111]

nice take , thx .

[Graeme1858]

Really cool image Graeme!
I would love to try planetary, but I nowhere near have the fl.
I would do much better with lunar and might give that a whirl one day!

Thanks Jim

Looking forward to your Lunar work!

Graeme

[Aratus]

Great. A nice crisp image. It could be improved by changing the white balance to remove the colour cast. Also a bit of contrast will bring out the 3 satellites again.

[Graeme1858]

Thanks Aratus

I didn't do a lot of processing out of AS3. Saving a TIF might have been a mistake but the AS3 FIT files don't seem to want to open in Pixinsight!

It's clear again tonight, I'm going to put the ASI294MC Pro into a Barlow!

How you been? We were in Lincolnshire a few weeks ago!

Graeme