SplasheryPlayground
Star Cluster, standing in a box with a red wall and a green wall.

Please do not tap the glass.

Star Cluster

A globular cluster is a ball of hundreds of thousands of stars held together by their own gravity, packed tightest at the middle.

Open in the PlaygroundHow to play

The facts

Shelf
Space
Kind
Built from a recipe
Sound
Yes
Licenses
Own work (made in the page)

How to play, in the Playground

Tap it to make the cluster breathe in and out.

Its controls

ControlKindRangeStart
Breathe in and outTap
BreatheButton

About it

A globular cluster is a ball of hundreds of thousands of stars held together by their own gravity, packed tightest at the middle. Its stars are very old, among the oldest in our galaxy, and the Milky Way has about 150 of these clusters circling it.

Tap it and the cluster breathes: it draws in, swells out and settles, the core first and the outer stars a moment later, while a wave of sparkle runs out from the middle. Near the middle of a real cluster, the stars are packed far more tightly than the stars around the Sun.

Sources and credits

Made in Splashery. Its code is MIT.

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