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Saturn from this morning 6/20/25 - Finally a morning without clouds - Dione animation added

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#1 dcaponeii

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Posted 20 June 2025 - 06:43 AM

Here's my first Saturn image from this morning.  Last capture before scuzzy thin low-level clouds began to form.  180s capture  10% of 22,000 frames.  The Cassini division has returned.  Using the new feature in the development version of Wavesharp 3.0 called Local Contrast with Background/Surface selected which allows for a different set of contrast enhancement parameters to be applied to the surface and background.  Saturn was at 42 degrees altitude at the time of capture.  I tweaked the collimation several times during my captures this morning slowly walking to this setting using Itaku's flare technique on Rhea (above and to the right) as well as on the lower boundary of the rings with preview gamma cranked up.  Note:  Dione completed it's transit of the disk a few minutes before this image was taken.  It's just visible to the right of the limb.  EDIT:  Found a bug in the software that I need to report to Cor.  Batch processing was resetting the values in the Background/Surface feature.  Saving images one at a time avoided the problem but probably means my Dione animation will be on hold until I report to Cor and he can make a correction.

 

2025-06-20-1034_4-U-L-Sat_AS_P10_lapl6_ap85_WS_J.jpg


Edited by dcaponeii, 20 June 2025 - 12:10 PM.

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#2 Achernar

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Posted 20 June 2025 - 07:45 AM

Fantastic! I haven't been looking at Saturn during this apparition yet, but your excellent image probably will change that. It's nice how Cassini's division was resolved despite the near edge-on orientation.

 

Taras


Edited by Achernar, 20 June 2025 - 07:47 AM.

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#3 AdrianoMS

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Posted 20 June 2025 - 08:09 AM

Beautiful image of Saturn! Thanks for sharing.


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#4 Mitchell Duke

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Posted 20 June 2025 - 08:28 AM

Best shot I have seen this year so far. Great shot!
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#5 Mike Spooner

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Posted 20 June 2025 - 09:54 AM

Don,

You knocked it out of the park! Well done.waytogo.gif waytogo.gif 
 

Mike


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#6 Winteria

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Posted 20 June 2025 - 11:15 AM

Very nice Don!


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#7 dcaponeii

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Posted 20 June 2025 - 12:15 PM

I managed to do two animations of my data from this morning.  Cor had been working on the bugs for me this morning and we're getting close to fixing them all.  I could not use derind for this series but everything else was functioning.

 

First is the full 750 x 750 px capture image.  Aligned and animated as an apng.  Tethys comes in at the bottom and Rhea is at the top. Both approaching the disk from quite far out.  Dione is about 2/3 of the way through it's transit at the start of the animation.  Click on the thumbnail to see the image.

 

animated align  equal w500h495
 
Second a crop ROI focused on the location of Dione it's not cleanly visible in the early frames when Saturn was below 25 degrees but in the later frames it's quite clearly resolved.
 
animated align  equal w600h484

 


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#8 KiwiRay

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Posted 20 June 2025 - 12:53 PM

Excellent results, Don!


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#9 dcaponeii

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Posted 20 June 2025 - 02:33 PM

A shot in the dark here. Pull up the qhy 200 in Nina. Click on the camera settings. See if anything is odd.


No idea what you’re talking about. I use an ASI676MC and Firecapture for data acquitting. Why would I use NINA for planetary imaging?

#10 KMH

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Posted 20 June 2025 - 03:24 PM

Those are beautiful results!

 

Kevin


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#11 JMP

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Posted 20 June 2025 - 04:44 PM

Wow! Beautiful shots!


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#12 Ittaku

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Posted 20 June 2025 - 05:18 PM

Excellent capture Don! Glad you're finding my collimation technique useful. It gets easier and faster with every capture.


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#13 dcaponeii

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Posted 20 June 2025 - 05:29 PM

Excellent capture Don! Glad you're finding my collimation technique useful. It gets easier and faster with every capture.

I've been using it for quite a while now.  I still use Metaguide every few weeks but on a night like last night it's easier just to tweak your way to the best collimation.  I can watch it improve in the first few captures that I collected.
 


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#14 John Boudreau

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Posted 20 June 2025 - 06:05 PM

A shot in the dark here. Pull up the qhy 200 in Nina. Click on the camera settings. See if anything is odd.

 

No idea what you’re talking about. I use an ASI676MC and Firecapture for data acquitting. Why would I use NINA for planetary imaging?

I think he intended to post that to Nick's thread on his QHY200M issues.

 

And while I'm here, I'll add to the kudos on your very impressive Saturn work here Don, WOW!!!   bow.gif  


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#15 dcaponeii

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Posted 20 June 2025 - 06:13 PM

I think he intended to post that to Nick's thread on his QHY200M issues.

And while I'm here, I'll add to the kudos on your very impressive Saturn work here Don, WOW!!! bow.gif


Thanks John

#16 Tulloch

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Posted 20 June 2025 - 09:58 PM

Fantastic images Don, well done.


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#17 dcaponeii

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Posted 21 June 2025 - 12:49 AM

Thanks Andrew.

#18 CeeKay

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Posted 21 June 2025 - 04:47 AM

Absolutely stunning image, Don!


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#19 Space Cowboy

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Posted 21 June 2025 - 07:20 AM

Thats the best Saturn I've seen this year waytogo.gif 


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#20 R Botero

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Posted 22 June 2025 - 01:56 AM

Fantastic result bow.gif


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#21 leoyasu

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Posted 23 June 2025 - 04:53 PM

Great catch Don! We were imaging almost at the same time. I was imaging a bit before. Those moons are hard


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