Composition: Ammonia
Diameter: 15 400 Miles; which is almost twice the size of earth and one sixth the size of jupiters diameter
Lasted for 300 years, as far as we know (the first person who observed it was in 1655, he was an itallian french astromoner)
The outer edge of the red spot rotates in a counter-clockwise direction once ever six days
The Red spot is a cold high pressure area
