Great World Wide Star Count

Every year in October, everyone in the world is invited to observe the sky and share their observations.

What is Great Worldwide Star Count?

Star Count is an international event that occurs every year in October. Anyone in the world is invited to observe the night sky and share their observations through the website. A global map of the stars from Earth can be edited using all observations. You can see last year’s results on the website and contribute to the next event.

What do you do?

Participating in the Great World Wide Star Count is fun and easy! You can join thousands of other students, families and citizen scientists from around the world counting stars this October! Five Simple Steps to Star Count: determine which constellation to observe, find that constellation at night an hour after sunset, match your night-time sky with one of our magnitude charts, report what you see online, view results of this international event.

Relations with school topics

Stars, the invisible Universe

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Citizen Science
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