How many times further is it from the sun to alpha centauri than from the sun to jupiter?

The Alpha Centauri binary stars are 4.3 light years from the Earth; the Earth to the Sun is 0.00001581 light years in distance, and from the Sun to Jupiter is 0.00008229 light years. 

Therefore (4.3 + 0.00001581) / 0.00008229 = 52254.41 times further

Magma is outside the volcano  and lava is inside the volcano.