Measure your sky for Globe at Night tonight: which campaign constellation is up, whether the Moon and cloud allow a reading, and where to report a fireball.
Frequently asked questions
How can I measure light pollution from Guyana?
On a Globe at Night campaign night, with the Moon down, match a constellation to its star charts and report it in the programme's web app. This page says which constellation is more than halfway up from your place, and when.
Does this page send my reading?
No. It links to Globe at Night, the fireball report form and Zooniverse; you report there.