T Coronae Borealis Nova 2025. If one wants to find t coronae borealis in the night sky first, he or she needs to locate the big dipper’s handle and move towards the arcturus star. It is also believed that an even earlier eruption was recorded in a medieval manuscript from 1217.

Australians will be able to see the explosion with the naked eye if the timing is right. T coronae borealis, or t crb, last exploded in 1946 and astronomers believe it will do so again between february and september 2024.