The 2009 Great World Wide Star Count is here! Join us by making your observations between October 9th and 23rd. Please be sure to download the Activity Guide to participate.
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.
See the map below showing the latest 100 observations! Visit the results page for more detail.
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!