Which three stars form the Summer Triangle asterism?

Answer

Deneb in Cygnus, Vega in Lyra, and Altair in Aquila

The Summer Triangle is an asterism formed by three bright stars: Deneb from Cygnus, Vega from Lyra, and Altair from Aquila.

Which three stars form the Summer Triangle asterism?

#Videos

Asterisms - Common star patterns in the night sky - YouTube

astronomystarconstellationpattern