What are the characteristics of the Pegasus map?

Pegasus is a very important constellation in the autumn sky. Knowing this will make it much more convenient for you to find many other constellations in autumn.

This is the map of Pegasus. The most remarkable feature is that its three stars, α, β and γ, form an almost square with Andromeda's α star, which is called the "autumn quadrangle". These four stars are all 2m except that the γ star is 3m, so this quadrilateral is very eye-catching in the sky. More importantly, whenever the flying horse reaches the zenith in autumn, the four sides of this quadrilateral just represent one direction, which is simply a "natural locator". In fact, it can not only locate, but also find many bright stars in other constellations through it.