Step 1 : Introduction to the question "What is the common name for the star Sirius?"
Sirius is the brightest star in the night sky. Sirius is almost twice as bright as Canopus, the next brightest star. Sirius appears bright because of its intrinsic luminosity and its proximity to the Solar System. Sirius is gradually moving closer to the Solar System, so it will slightly increase in brightness over the next 60,000 years. Sirius is sometimes called the "Dog Star", reflecting its prominence in its constellation, Canis Major (the Greater Dog). Most people in the Northern Hemisphere notice Sirius in the southeast – south – or southwest on evenings from winter to mid-spring.