What is the brightest star in the northern hemisphere?

Answer:
After the Sun, the brightest star is Sirius, in the constellation Canis Major.

However, while Sirius is the brightest star visible from the Northern Hemisphere, it is part of a southern hemisphere constellation. Therefore, Arcturus, in Bootes, would be the brightest Northern Hemisphere star.
First answer by Cosmospup. Last edit by Cosmospup. Contributor trust: 856 [recommend contributor recommended]. Question popularity: 2 [recommend question].