Triangulum constellation

Triangulum is a in the northern sky comprising three of its brightest stars that form a long narrow triangle. The white stars Beta and Gamma Trianguli, of s 3.00 and 4.00, respectively, form the base of the triangle and the yellow-white Alpha Trianguli, of magnitude 3.41, the apex.

Observations
is a notable double star system seen within Triangulum constellation. Also can be observed are three s with known planets. The constellation contains several galaxies, the brightest and nearest of which is the or Messier 33—a member of the. The first ever observed,, also lies within the boundaries of Triangulum.