Brief introduction of triangle constellation

There are 15 stars brighter than 6 in the triangle valley, among which the brightest stars are α3.00, β 3.4 1 and γ 4.00 in the triangle valley. They form an almost isosceles slender triangle. Adjacent to Perseus, Andromeda, Aries, Pisces and Aries. Messier objects includes: M33. There is no star with the apparent magnitude of 1 in the triangle. Its brightest star is the white triangle β(3.00 meters), which has a very close dark companion. The second brightest star is the yellow and white Supergiant star triangle α(3.4 1m), and it has a very close and dark companion star at the vertex of the triangle. Triangle 6 is a "charming binary star with obvious color contrast", which can be divided into a bright yellow star and a dark blue star with a medium-sized telescope. The two stars are closely linked.