Sun

Splashery stretches a drumhead over this Splash's outline, twelve inches across, and finds the ways it can ring. Its lowest is 294.9 Hz, 7 cents sharp of D4. The next fifteen are its overtones, and each one draws its own figure: sand gathers on the lines that stay still.

Tap it to set off a solar flare.

The Sun is the star at the center of our solar system, a huge ball of hot, glowing gas. About 1.3 million Earths could fit inside it, and its light takes about 8 minutes to reach us.

This Sun churns by itself: bright cells of hot gas swell and fade, and loops of glowing gas called prominences rise and sink at its edge. Tap it to set off a solar flare: its feet flash white, a loop of hot gas climbs off the top edge, swells, and its top breaks away into space. Real flares are sudden bursts of energy that can disturb radio signals on Earth, and the gas thrown off with them can light up auroras.

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.