Sirius, the brightest star in the night sky, is not expected to go supernova anytime soon. Sirius is classified as a main-sequence star, specifically a type A1V star, and it has a relatively young age of about 200 to 300 million years. Main-sequence stars like Sirius typically have lifetimes ranging from a few million to several billion years, depending on their mass.
While it's difficult to predict the exact timing of a star's supernova event, current estimates suggest that Sirius has a long way to go before it exhausts its nuclear fuel and evolves into a supernova. Some scientists speculate that Sirius will eventually explode as a supernova in about 100 to 150 million years, but this is a rough estimate and subject to change as our understanding of stellar evolution improves.
It's important to note that predicting supernovae with precise timing is still an active area of research, and new discoveries may refine our understanding in the future.