Light The Night 2024 Triangle. Find out what's up in your night sky during september 2024 and how to see it in this space.com stargazing guide. They’re the first three stars to light up the eastern half of the sky after sunset.

If you’re lucky enough to be under a dark starry sky on a moonless night, you’ll see the great swath of stars passing between the summer triangle’s vega and altair. They’re the first three stars to light up the eastern half of the sky after sunset.