Contains:  Solar system body or event
Jupiter, Io and Ganymede 18 April 2020, LacailleOz

Jupiter, Io and Ganymede 18 April 2020

Acquisition type: Lucky imaging

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Description

Always hard to resist the large field images of Jupiter and some Galilean moons. Here the two moons, Io and Ganymede, seem crisper than the details on the planet although all were captured in the same three videos (RGB). There is a suggestion of albedo on the moons but it is best to assume this is artefactual. Their presence can often make derotation of the three colour channels in WinJUPOS problematic as the moons often do not line up with the projected position from the time stamp, and that proved the case here, so i had to realign the channels manually for each moon, using Registax.

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Jupiter, Io and Ganymede 18 April 2020, LacailleOz

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Jupiter