The brightest star of the constellation and the sixth brightest star in the sky (0.1mag). It never sets in our location. It is the northernmost star in the Winter Hexagon of bright stars. We can easily spot its yellow hue with the naked eye. It is located 43 light-years away and its actual luminosity is 160 times greater than that of the Sun. It is one of the most well-known spectroscopic binary stars, orbiting around a common center, with a period of 108 days. In terms of spectrum and surface temperature, they are comparable to our Sun. The mass reaches 2.5 times, respectively, the mass of the Sun, with one star being 78 times and the other 72 times brighter than the Sun.