Comet

Splashery stretches a drumhead over this Splash's outline, twelve inches across, and finds the ways it can ring. Its lowest is 1202.5 Hz, 41 cents sharp of D6. The next fifteen are its overtones, and each one draws its own figure: sand gathers on the lines that stay still.

Tap it to swing it past the Sun and flare its tails.

A comet is a lump of ice, dust and rock, often only a few kilometers wide, that travels around the Sun on a long, stretched orbit. As it comes near the Sun, its ice turns to gas, making a glowing cloud around it called a coma, and two tails: a straight blue tail of gas and a curved, pale tail of dust. The tails point away from the Sun.

Tap it to swing it past the Sun: jets of gas burst from the sunny side, the coma swells, and both tails flare longer and brighter, then fade back. Halley's Comet comes back about every 76 years.

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