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Yet another "First Saturn (with Dione & Tethys) & Jupiter (with GRS & Europa Transit) of the year!" Post

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#1 leoyasu

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Posted 14 April 2021 - 11:11 PM

Hi folks! I'm very happy to bring you the first shots of the year. With a complicated capturing time, the sky and planets called me once more. On Monday night I saw that on Tuesday very early in the morning there were going to be pristine conditions for what the Buenos Aires skies are, which were not goint last much. With the oppositions still far away, at least Saturn and Jupiter were going to be above 40° alt., I said to myself why not or at least I would think about it. Finally, I see that at 6:30 am (9:30 UTC) Jupiter was going to have a GRS transit and another with Jovian Europa. All too good to be true, so I go to the forecast for the jet stream and surprise, I see that the upper winds were going to be almost non-existent. So, I set the alarm clock at 4:50 am....

 

In total I managed to capture between 6am and 7am, 3 15' sets before dawn began to mess with contrast. 2 of Saturn and one of Jupiter. I discarded the first batch of Saturn, although it is not bad, the second batch was taken at a higher altitude and it was noticeable during processing. Jupiter had about 47° alt. at the time of capture, which although it is not the best, it was not the worst either. I must also say that the seeing was crazy, I never had these conditions at those altitudes and luckily it was reflected in later.

 

The processing method was the same as always: capture in FC, centering in PIPP, stacked in AS !, deconvolution in AstroSurface, de-rotated in WJ and aesthetic in PS. Also, the batches are 15' each in 1.5' videos, at about 200fps for Jupiter and 70fps for Saturn. Of these, I stacked between 10% to 15% for Jupiter and 10% to 30% for Saturn. Both images are a 80% resize of the x1.5 drizzle:

 

 

2021-04-13-0950_5-LY-Sat_RGB_85.png

 

 

2021-04-13-0932_5-LY-Jup_RGB2.jpg

 

 

This year it is noticeable how Saturn appears less tipped, making the task of photographing the polar hexagon difficult. Too bad I didn't have the time to take an IR capture to see it better. I don't see any storms in sight but a few nice superficial details. As for Jupiter, the northern bands are calmer after what were last year's storms. Europe appears shy above the GRS. This one does not have disturbances like the chimneys that emerged a few years ago, but I would dare to say that there is a orange tint in its upper part within the southern equatorial band.

 

Both giants are far from their respective oppositions and apparent larger sizes but what a show they gave. At the eyepiece they were incredible, with a clarity that I rarely remember seeing despite the relative low altitude. How I missed them !!!

 

Best regards, Leo.


Edited by leoyasu, 15 April 2021 - 01:15 PM.

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#2 Aquat0ne

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Posted 14 April 2021 - 11:17 PM

Great shots. The clarity and detail is amazing.
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#3 chanrobi

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Posted 15 April 2021 - 12:04 AM

Bruh ****, looks like shot with hubble telescope


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#4 fallenstarseven

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Posted 15 April 2021 - 12:41 AM

Spectacular!   Thank you for sharing...


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#5 Kiwi Paul

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Posted 15 April 2021 - 01:30 AM

Those are fantastic images! Congratulations. They are superb! What a start to the season.
Cheers Paul
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#6 Tulloch

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Posted 15 April 2021 - 02:13 AM

Excellent images! Saturn especially just pops, if you get better than that this year it will be an amazing year.

 

I'm interested in hearing a little more about your WJ derotation steps from your 14" Dob, was this a video derotation or each image derotated and then stacked?

 

Congratulations, Andrew



#7 Luc CATHALA

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Posted 15 April 2021 - 02:32 AM

Waouuu fantastic pictures and processing.

Clear skies.

Luc


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#8 Kokatha man

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Posted 15 April 2021 - 02:40 AM

Very nice, especially Saturn for so early! waytogo.gif waytogo.gif waytogo.gif



#9 R Botero

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Posted 15 April 2021 - 03:32 AM

Superb images! waytogo.gif  Details, colours, processing are spot on Leo bow.gif

 

Roberto


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#10 le geolois

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Posted 15 April 2021 - 04:02 AM

Excellent congratulations

alain


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#11 BQ Octantis

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Posted 15 April 2021 - 05:24 AM

¡Hermosuras!

 

BQ



#12 John Boudreau

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Posted 15 April 2021 - 06:28 AM

Excellent results! waytogo.gif


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#13 leoyasu

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Posted 15 April 2021 - 03:02 PM

Thank you all for stopping by and for the likes too! I'm glad you all like them, I just hope I have conditions like that at least a couple more times during the year grin.gif.

 

Excellent images! Saturn especially just pops, if you get better than that this year it will be an amazing year.

I'm interested in hearing a little more about your WJ derotation steps from your 14" Dob, was this a video derotation or each image derotated and then stacked?

Congratulations, Andrew

 

Ty Andrew! My workflow for that is:

 

  1. Take 10 videos of 1.5' each.
  2. Center the planet on PIPP on all videos (just for doing it).
  3. Stack in AS! all videos, resulting in 10 images.
  4. Image sharpening.
  5. I measure the 10 images in WJ.
  6. Derotation of all images resulting in one at mid point time.

 

Now I'm comparing decon vs. wavelets. This last ones are pretty close to decon, maybe I need better seeing (for Jup and decon):

 

2021-04-13-0932_5-LY-Jup_RGB_Wav.png

 

Leo.


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#14 leoyasu

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Posted 15 April 2021 - 03:03 PM

¡Hermosuras!

 

BQ

Muchas gracias grin.gif

 

 

 

Very nice, especially Saturn for so early! waytogo.gif waytogo.gif waytogo.gif

Thanks Darryl, can't wait to see your work this year!



#15 leoyasu

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Posted 16 April 2021 - 04:24 PM

I leave one smoother version of Saturn. This time I used wavelets and a stronger denoise:

 

2021-04-13-0950_5-LY-Sat_Wav.png

 

If anyone wants to see the best frames check this site for .Gif's.

 

Leo.


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#16 Tulloch

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Posted 16 April 2021 - 05:08 PM

I leave one smoother version of Saturn. This time I used wavelets and a stronger denoise:

 

If anyone wants to see the best frames check this site for .Gif's.

 

Leo.

You were not kidding about the seeing Leo, you must have just about fallen off your chair when you saw that come up on the screen lol.gif

 

I prefer the slightly softer Saturn myself, but both are extraordinary, congratulations (again) :).


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#17 Borodog

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Posted 16 April 2021 - 09:12 PM

Outstanding. The colors on Saturn especially are probably the best I've seen posted here.


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#18 leoyasu

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Posted 16 April 2021 - 09:46 PM

You were not kidding about the seeing Leo, you must have just about fallen off your chair when you saw that come up on the screen lol.gif
 
I prefer the slightly softer Saturn myself, but both are extraordinary, congratulations (again) smile.gif.

 

Well I've now the final version of Saturn and yes, I wanted to process the videos as soon as I saw the screen in the FC grin.gif :
 


IMG_20210413_064335703.jpg

 

 

Outstanding. The colors on Saturn especially are probably the best I've seen posted here

 

As I said above, I've a final version with a slightly adjusted red channel. Let me know if it's any good:

 

 

2021-04-13-0950_5-LY-Sat_RGB_85_soft2.jpg

 

 

Leo.


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#19 Kiwi Paul

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Posted 17 April 2021 - 05:52 AM

I reckon this image of Saturn (and Jupiter for that matter) is likely to be amongst the best this season.

Cheers Paul


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#20 leoyasu

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Posted 19 April 2021 - 09:15 PM

Last one from this batch, a more natural Jup:

 

2021-04-13-0932_5-LY-Jup_Rep2.png

 

 

Now I set the 4:50 am alarm to catch upper winds of only 1 knot, hope I get lucky!


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#21 Kiwi Paul

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Posted 19 April 2021 - 11:48 PM

In a word - stunning!
Cheers Paul
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#22 matt_astro_tx

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Posted 20 April 2021 - 12:46 PM

This makes me question everything I’ve done with Saturn to date! Superb work.
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#23 Ron G.

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Posted 23 April 2021 - 08:40 PM

Beautiful Images! Thank you for sharing.


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