> Would a gas giant like Jupiter in orbit where we are produce a large enough magnetic shield to protect it's
> moons without their own magnetospheres from the solar wind and if so would it have an outer limit? IE -
> would a jovian planet create a habitable zone around it where moons without magnetospheres would be
> safe? I assume that beyond that point a moon with a terrestrial magnetosphere would be safe as well.
I'd actually think it's more likely that a moon without a magnetosphere orbiting a jovian with a powerful magnetosphere is more likely to lose its atmosphere than a moon with a magnetosphere. Jupiter's magnetosphere actually traps and accelerates the solar wind particles, which then rain down on the satellites and would sputter away at their surfaces and atmospheres. I think a habitable moon would need to have a pretty strong (earth-strength) magnetic field of its own to protect against that and be able to retain its atmosphere - it'd have lots of pretty aurorae too.
> moons without their own magnetospheres from the solar wind and if so would it have an outer limit? IE -
> would a jovian planet create a habitable zone around it where moons without magnetospheres would be
> safe? I assume that beyond that point a moon with a terrestrial magnetosphere would be safe as well.
I'd actually think it's more likely that a moon without a magnetosphere orbiting a jovian with a powerful magnetosphere is more likely to lose its atmosphere than a moon with a magnetosphere. Jupiter's magnetosphere actually traps and accelerates the solar wind particles, which then rain down on the satellites and would sputter away at their surfaces and atmospheres. I think a habitable moon would need to have a pretty strong (earth-strength) magnetic field of its own to protect against that and be able to retain its atmosphere - it'd have lots of pretty aurorae too.