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Ganymede, Europa & Io at 4:13am
Hello,
Here is an earlier image that also shows Io (moon on the left). I massaged this slightly in AIP4Win and it appears to have brought out the diffraction rings around the moons, albeit rather faintly.
Stack of 173 from 2100, otherwise same capture settings.
The Mewlon 180mm F12 surface area (ignoring secondary obstruction) given by πr2 is 255cm2 compared to the C9.25 value of 434cm2 so I didn’t have too many photons trickling through the 180mm gap!
Cheers
Dennis
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