The methane atmosphere gives a blue hue to, for 10 points, what planet, orbited by Nereid and Triton, the furthest planet from the sun?
This planet was discovered because a nearby planet was experiencing an odd gravitational effect. Voyager II was sent to observe it, and the Adams ring is the largest ring around it. The largest moon that spins retrograde orbits this planet on which a massive storm, the Great Dark Spot is found. The methane atmosphere gives a blue hue to, for 10 points, what planet, orbited by Nereid and Triton, the furthest planet from the sun?
This planet was discovered because a nearby planet was experiencing an odd gravitational effect.
{Neptune}