Jupiter, Ganymede shadow transit 11/10/2024 08:41.5 UTC

Here's Ganymede's shadow transiting Jupiter on 11/10/24:

Jupiter
2024-11-10 08:41.5 UTC

My goals for the evening were quick test shots of saturn and jupiter 

saturn was disappointing with mediocre seeing at low altitude,

but when i turned to jupiter the seeing improved dramatically

this combined with the GRS and a Ganymede shadow transit led to sleep deprivation.

Here's an animation of a portion of the shadow transit:

Jupiter
2024-11-10
08:24.8 to 08:48.6 UTC

wide view:

Jupiter and moons
2024-11-10
08:19.9 UTC

Saturn and moons earlier that night:

Saturn and a few moons 
2024-11-10
07:09 UTC

Imaging details:

ZWO ASI664MC

sunobserver eADC from astro hutech

celestron 11" Edge HD, no barlow
East Bluff, CA

11/10/24

90 second captures

Shutter=1.000 ms

Histogram=61%

gain 431

245 fps

captured with firecapture
stacked in autostakkert (upsampled 3x)
combined in winjupos 
processed in registax and photoshop

down sampled 50% for a final 1.5x for the first shot

1x for the animation

.5x for the wide field.

saturn was imaged low in the sky earlier that evening

the seeing was mush down low, but the eADC did well.  

This was my third night out with the eADC

the first required a bit of fiddling learning the controls/modes

the numbers on the readout are comically small. 

i had to magnify it with my cell phone

the alignment was good, but not perfect. 

the second night i dialed in the alignment perfectly, but the seeing degraded.

the third night, i just plugged the thing in, 

didn't touch the controls 

the correction was perfect all across the sky.  

very impressive.  

The ADC tuning tab in firecapture helped align the ADC:

winjupos continues to show it's value:  

the image derotation section has an option to correct the position of planetary moons and their shadows.

this allows you to stack individual moon images in one fell swoop with image derotation.  

hence more apparent detail on ganymede than i've ever captured before.

the shadow stacking didn't work out as well, leaving some artifacts (removed in photoshop), but it did mask the shadow out from all the images not at the reference time, so a help there.

here's a winjupos screen shot accurately showing distortion of the shadow on the edge of jupiter and even the penumbral halo:

winjupos screen shot showing
ganymede and shadow positions