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Contains: 
Saturn with animation: 2019-05-20 19-22 UT (redux), 





    
        

            Darren (DMach)

Saturn with animation: 2019-05-20 19-22 UT (redux)

Acquisition type: Lucky imaging

Technical card

Resolution: 590x408

Date:May 20, 2019

Time: 19:22

Frames: 18900

FPS: 50.00000

Focal length: 5600

CMI: 178.00

CMII: 355.60

CMIII: 31.50

Seeing: 4

Transparency: 9

Locations: Home, Singapore, Singapore

Data source: Backyard

Description

In the process of making my recent "approaching opposition" compilation, it became apparent that the capture from 21st May (2019-05-20 19-22 UT) contained the most detail, including some possible storm detail in the polar region.

I have reprocessed that data and also created an animation to confirm suspected storm activity - this is the result.

The main (still) image is a de-rotation of 14 x 90s captures with just shy of 19,000 frames of data.

The animation is created from a rolling average (de-rotation) of 8 x 90s captures.

I'm finding the reduction in detail when creating an animated GIF to be increasingly frustrating - this is an image format that was designed for simple text/shape animations on the web after all, and it therefore does not handle gradients well.

So for comparison, I'm experimenting with the newer animated PNG format (APNG) using the program "APNG Anime Maker".

The result is indeed superior ... but unfortunately you'll have to take my word for it, as it looks like Astrobin does not support APNG format yet. :(
 
 
As a work-around, you can see the APNG version of the plain animation here:

**Do note: not all browsers support APNG at this time (recommend you use Google Chrome). It also does not appear to work on mobile devices ... recommend you view using a PC. I cannot comment on Mac support.**

https://drive.google.com/open?id=1yskPVZzUp-TCNsL4_N2U4EoMqaqbYMIb
 
 
And here is a version in which I have labelled some of the suspected storm activity:

https://drive.google.com/open?id=16BopChGAriwz8CHsOU6VsHtet5kZQdyG
 
 
Thanks for looking!

Comments

Author

DMach
Darren (DMach)
License: None (All rights reserved)
2991
Like

Revisions

  • Saturn with animation: 2019-05-20 19-22 UT (redux), 





    
        

            Darren (DMach)
    Original
  • Saturn with animation: 2019-05-20 19-22 UT (redux), 





    
        

            Darren (DMach)
    B
  • Final
    Saturn with animation: 2019-05-20 19-22 UT (redux), 





    
        

            Darren (DMach)
    D

B

Animated GIF format

D

Uploading a rotated version ... I find this more aesthetically pleasing. :)

Histogram

Saturn with animation: 2019-05-20 19-22 UT (redux), 





    
        

            Darren (DMach)