Thank you for your interest in the Great World Wide Star Count!
Over 12,000 observations have been submitted during the 3 Star Count campaigns! Full results of the campaigns, including maps, are now available. More than 31,000 citizen scientists from 64 countries around the world have submitted their reports on the quality of their nighttime sky.
Star Count is part of the Dark Skies Awareness Cornerstone Project for IYA 2009.
Can you see light pollution in your sky??
Five Simple Steps to Star Count:
1. Determine which constellation to observe
2. Find that constellation at night an hour after sunset (about 7-9pm local time)
3. Match your nighttime sky with one of our magnitude charts
4. Report what you see online
5. View results of this international event
(For complete steps download the Activity Guide)
Determine which constellation you should observe. Click on your location in the map below.
This international event encourages everyone to go outside, look skywards after dark, count the stars
they see in certain constellations, and report what they see online. This Windows to the Universe Citizen Science Event is designed to encourage learning in astronomy!
- Download our Activity Guide to participate! Now available in English, Spanish, Portuguese, Dutch, Italian, Romanian and Chinese.
- Subscribe to our mailing list to receive email updates about this exciting event!
- Spread the word! Share our flyers with family and friends!
