Jupiter

Splashery stretches a drumhead over this Splash's outline, twelve inches across, and finds the ways it can ring. Its lowest is 273.0 Hz, 74 cents sharp of C4, the nearest tine on the comb. The next fifteen are its overtones, and each one draws its own figure: sand gathers on the lines that stay still.

Tap it to race the cloud bands and spin up the Great Red Spot.

Jupiter is the biggest planet, a giant ball made mostly of hydrogen and helium gas, with no solid surface to stand on. More than 1,300 Earths could fit inside it. Its stripes are bands of clouds blown by strong winds, and the Great Red Spot is a storm wider than the Earth that has raged for at least 150 years.

Tap it and the cloud bands race, each one the opposite way to its neighbors, while the Red Spot's swirl spins up; then it all settles. Jupiter spins faster than any other planet: a day there lasts about 10 hours.

Made in Splashery. Its code is MIT.

This link opens it in the Playground. To put it on your own page, add the element and one script tag. Every option.