The appearance this week of the three bright Summer Triangle stars — Vega, Deneb and Altair — marks the beginning of summer in the Northern Hemisphere. Here's how to spot them.

Three bright stars mark the beginning of summer. Here's how to spot the 'Summer Triangle' this week.

Source: space
Source Link: https://www.space.com/three-bright-stars-mark-beginning-of-summer-spot-summer-triangle