For thousands of years the North Star was used by astronomers and travelers for guidance and a reference point. If you are lost in the wilderness or at sea the best way you can find your bearings, without the use of modern day GPS systems or even the simplest of compasses, is to locate the easily visible North Star in the sky. The star is visible even in the darkest of nights and it will always point you the direction of North.
Although the so called Polaris or Alpha Ursae Minoris star is very bright and easily distinguishable in the night sky, it’s not the brightest one. It holds the 50th place in the brightest stars chart. What’s even more interesting about the Polaris, besides that it could be found directly above Earth’s North Pole, is it’s actually a part of a triple star system.
The Polaris has a relatively close dwarf binary and another bigger star called Polaris B that all orbit each other. The biggest and brightest star from this triple star system is the giant 4.5 times bigger than our Sun, Polaris, we can actually see with the naked eye or the simplest of telescopes. The star system was discovered by William Herschel back in 1780.