It has been proposed to create a supercluster named for this star that would include the likes of Beta Crateris, Beta Eridani, and Beta Serpentis. Its annual heliacal rising matches the earth's solar year because it is found along the same arm of the Milky Way, and along with Procyon and Betelgeuse, it forms part of the Winter Triangle. Friedrich Bessel first discovered its wobble, which was confirmed by Clark to be the result of a companion to it that is now known to be a white dwarf, while its A star is a main sequence star of type A1V.  For 10 points, name this star system, the brightest in the night sky and a memb
It has been proposed to create a supercluster named for this star that would include the likes of Beta Crateris, Beta Eridani, and Beta Serpentis. Its annual heliacal rising matches the earth's solar year because it is found along the same arm of the Milky Way, and along with Procyon and Betelgeuse, it forms part of the Winter Triangle. Friedrich Bessel first discovered its wobble, which was confirmed by Clark to be the result of a companion to it that is now known to be a white dwarf, while its A star is a main sequence star of type A1V.  For 10 points, name this star system, the brightest in the night sky and a member of the constellation Canis Major, often called the "Dog Star."
It has been proposed to create a supercluster named for this star that would include the likes of Beta Crateris, Beta Eridani, and Beta Serpentis.
Sirius [prompt on "Dog Star"]