Big Star Boom

These Two Stars Will Collide in a Spectacular Explosion

It'll be the brightest stellar object in the night sky.
Victor Tangermann Avatar
Two stars that make up the binary system called V Sagittae some 1,100 light years away are going to collide in an enormous explosion around 2083.
Image: Casey Reed/NASA/Victor Tangermann

Star Collision

Two stars that make up the binary system called V Sagittae, are going to collide in an enormous explosion that’ll briefly become the brightest stellar object in Earth’s sky, according to astronomers. And it could happen by the year 2083, give or take 16 years.

“The fate of V Sagittae is inevitable,” said researcher Bradley Schaefer at Louisiana State University during the American Astronomical Society in Hawaii this week, as quoted by New Scientist. “Set your calendar.”

Age of Sagittarius

The two stars circle each other closely, with the light they’re emitting brightening by a factor of 10 since it was first discovered in 1890, according to a statement.

V Sagittae is made up of an ordinary star orbiting around a white dwarf star, with the former’s matter slowly falling onto the latter. The astronomers’ mathematical model predicts this process to result in a merger between 2067 and 2099.

Shine So Bright

The collision will be spectacular.

“For maybe a few weeks, it will be the brightest stellar object in the sky,” Juhan Frank, a Louisiana State professor who worked on the research, told Gizmodo. “It may even shine brighter than Venus, though those predictions are uncertain.”

According to Schaefer, it’ll be “substantially brighter than the all-time brightest known nova just over a century ago, and the last time any ‘guest star’ appeared brighter was Kepler’s Supernova in the year 1604.”

READ MORE: If You Make It to 2083, You Could Witness Two Stars Collide [Gizmodo]

More on exploding stars: Check Out the 3D Wreckage From This Exploded Star

I’m a senior editor at Futurism, where I edit and write about NASA and the private space sector, as well as topics ranging from SETI and artificial intelligence to tech and medical policy.