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Contains:  Solar system body or event

Jupiter: 2020-05-05 19:30UT

Acquisition type: Lucky imaging

Technical card


Date:May 6, 2020

Time: 03:30

Frames: 5760

FPS: 80.00000

Focal length: 5600

CMI: 157.20

CMII: 320.30

CMIII: 18.40

Seeing: 4

Transparency: 6


Resolution: 649x541

Locations: Home, Singapore, Singapore

Data source: Backyard

Description

After weeks of storms and rain (see Rev B) clear skies before going to bed last last made me hopeful for a break in the clouds.

Sure enough, when I roused myself at 2:30am the skies were still clear. Seeing looked to be quite good as well during my collimation check.

Upon skewing to Jupiter, however, the histogram suggested transparency being less than optimal (as did the fact that, despite the good seeing, focus was still hard to judge). The sweat rolling down my arms also hinted at even higher than normal humidity, so there was a risk of cloud formation.

Sure enough this came to pass, but luckily I still managed to sneak in 4 x 120 second decent captures. The top 15% of frames was stacked from each and then de-rotated in WinJUPOS.

The final image is little blurred and washed out due to the hazy skies, but nice details are visible none-the-less. This includes several large, pale ovals in the north polar region. The NEB continues to appear extremely turbulent.

Comments

Author

DMach
Darren (DMach)
License: None (All rights reserved)
3192
Like

Revisions

B

Description: A frequent (almost daily) weather occurrence over the past two weeks ...

C

Description: Exposure boost

Histogram

Jupiter: 2020-05-05 19:30UT, 



    
        

            Darren (DMach)