In the sky.
It's in the sky, but it hasn't been explained a galaxy, but the brightest star is Sirius A
Sirius, also known as the Dog Star or Sirius A, is the brightest star in Earth's night sky. The name means "glowing" in Greek. With a visual magnitude of -1.46, the star is outshone only by several planets as well as the International Space Station.Jun 24, 2013
Sirius is the dog star as well as the brightest star in the milky way galaxy