The Great Red Spot is what is know as anti-cyclone.
The red spot is a storm.
it is a storm system 400 years old
2
3 earths
This is Jupiters large red spot. It is a large storm system that has been churning for hundreds of years on the surface of the planet.
They are both large, raging storms last for hundreds of years.
It is a giant dust storm like the one that Jupiter has. But Jupiters is a bit bigger. :)
2
Voyager 1 and 2 in 1979
3 earths
The Jupiter is BIG RED SPOT and a storm system
Jupiter's giant red spot is really just a giant storm and is sometimes nicknamed Jupiter's Red eye.
It is though to be a highly stable windstorm.
This is Jupiters large red spot. It is a large storm system that has been churning for hundreds of years on the surface of the planet.
About 300 years (109,500 days)
It depends where you're looking from. I think its on the bottom left corner.
3 times the size of earth there is also a little red spot and astronomers believe that the big red spot will eat up the little red spot.
They are both large, raging storms last for hundreds of years.
None. Saturn has a great white spot, Uranus has a dark spot. However, Neptune has a great dark spot [see related link for a picture] which has been compared to Jupiters great red spot, but it is not red.