The bright star in the sky that you are referring to is most likely Sirius, also known as the Dog Star. It is the brightest star in Earths night sky and is visible from almost everywhere on Earth, except for latitudes above 73 degrees north. Sirius is located in the constellation Canis Major and is about 8.6 light-years away from Earth. It has a visual apparent magnitude of -1.46, making it almost twice as bright as the next brightest star, Canopus.
Sirius is highly visible in the Northern Hemispheres winter night sky due to its high intrinsic brightness and its relatively close distance to Earth. The star is so bright that it is often mistaken for planets like Jupiter or Venus. Its brightness is attributed to its high intrinsic luminosity and its proximity to Earth.
So, the next time you look up at the night sky and see a particularly bright star, theres a good chance its Sirius, the brightest star in Earths night sky.
