largest moon

[barber]

in our solar system in terms of diameter the largest moon in relation to the size of its planet orbits around which planet

[shammydodger]

Pluto.

The sole satellite of Pluto (diameter 2274km) is Charon (diameter 1212km.)

The next in this series is the Moon (3476km) compared to the Earth's diameter of 12756km.

And, no, I'm not going to be drawn into the debate as to whether or not Pluto is a planet.

[shammydodger]

As I said, Eddie, I'm not getting drawn into an argument!

[bernardo]

I'm not a racist, but I think that Pluto is a planet. It's more a matter of culture and history rather than science.

[mibn2cweus]

I'm not going to be drawn into the debate as to whether or not Pluto is a planet either, period.

But if I were I would argue that if we assume Pluto is a planet, than in terms of diameter, Pluto/Charon, could be described as the twin planet system with the closest planet to planet size ratio in our solar system.

This is why I refuse to participate in this debate; at least not until I think of a better reason not to participate.