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Jupiter with Europa & Io

Technical card

Resolution: 3111x2138

Date:May 8, 2019

Time: 18:06

Frames: 40000

FPS: 53.00000

Focal length: 9775

CMI: 63.10

CMII: 116.30

CMIII: 77.90

Seeing: 5

Transparency: 10

Locations: Home property, Wattle Flat, NSW, Australia

Data source: Backyard


I was very fortunate to have the best seeing I ever encountered for this beautiful aspect of the two smaller moons of Jupiter straddling the giant planet. Europa at left was moving from left to right and 13 minutes after this capture it entered Jupiter's shadow. Meanwhile the slightly larger Io was also moving from left to right away from Jupiter. Since both moons were behind the planet we are looking at their pro-jovian hemispheres, given all the moons of Jupiter are tidally locked to it.
Both moons were aligned, stacked and RGB integrated separately and then inserted into their correct position using a "green" image, with exactly the same timestamp as the final colour image, as a template. I present this again South up as I feel it is the more aesthetically pleasing aspect. With the benefit of the wonderful seeing the resolution is probably as good as it gets for my set up and this is amongst my best images of Jupiter.
It is hard to tire of the extraordinary beauty and the ever changing palette of this planet.



Niall MacNeill



Clean up artefact around Io


Jupiter with Europa & Io, 


            Niall MacNeill