T Coronae Borealis: When to watch ‘once-in-a-lifetime nova star system explosion

In a rare cosmic explosion called Nova, spectators will get a once-in-a-lifetime opportunity to watch the birth of a new star in our milky way, NBC News reported.

This rare "nova outburst", roughly occurs once every 80 years and was last seen in 1946.

The eruption will occur in the T Coronae Borealis system, also known as T CrB, which is 3,000 light years away from the Earth.

The T Coronae Borealis system consists of a dying star —red giant and a smaller white dwarf star, which has been stealing matter from the dying star.

The two stars are so close in proximity that the hydrogen being released from the red star is constantly spilling into the white dwarf, building pressure and heat, ultimately triggering an eruption.

According to Bradley Schaefer, a professor emeritus of physics and astronomy at Louisiana State University, at its peak, "It's going to be bright in the sky, so it'll be easily visible from your backyard."

Astronomers predict that the nova explosion could happen anytime between now and September and it will be so bright that it will be visible to the naked eye and will likely remain for a few days.

Nova is an astronomical event that causes the appearance of a bright "new star" which fades away in a couple of days.