Comments: I planned this session to try to make 3 hours of movies and thus create a Gif with the transit of Europa and Io's hiding. The idea was to catch the exit of Io and Ganymedes from behind the planet but at 04:10 UT the clouds came to spoil the work .Astrophotographer joy is never complete! There were 50 videos of 60 sec with 60 sec intervals totaling 2 hours of effort. Without editing in Winjupos to make the image beautiful, variations from one film to another are inherent to seeing variations. Date: August 12, 2021 between 02:28 UT and 04:09 UT

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Observation 1
Feature(s)	Europa
Filter(s)	rgb
Date	2021-08-12 02:28:00
Julian day	2459438.6027777777
System I	51.528606°
System II	279.74442°
System III	101.07176°
Illumination	100.0%
Phase angle	1.7999999523162842°
Solar longitude	46.0°
Eq. diameter	48.94″
Derotation	0.0 min