Procyon is one of the Winter Triangle stars and is very obvious at the moment. It turns out that it is very close to us, just 11.5 light years. It is so bright because it is so close. It is a class F star so it is hotter than the Sun. It is a little bigger than the Sun and its intrinsic brightness is higher. In other words, our Sun doesn't look as bright from Procyon as Procyon looks to us.
https://en.wikipedia.org/wiki/Procyon
