It’s been a long wait, but it could pay off any day now.
Earlier this year, NASA announced an upcoming nova outburst that’s expected to pop off overhead around 3,000 light-years from Earth.
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Because the nova outburst only happens once every roughly 80 years, it could be a once-in-a-lifetime opportunity for many.
But there’s a problem: researchers don’t know exactly when it will happen.
The star system — T Coronae Borealis (“T CrB,” a.k.a. the “Blaze Star”) — last exploded in 1946, and astronomers believe it will do so again by the end of September.
“T CrB” is usually too dim for the naked eye to see, but the nova burst will increase its brightness to a level similar to the North Star, NASA experts explain.
Once the brightness reaches its peak, it’s expected to remain visible to the unaided eye for several days — just over a week with binoculars — before dimming again, likely for another 80 years.
“It’s a once-in-a-lifetime event that will create a lot of new astronomers out there, giving young people a cosmic event they can observe for themselves, ask their own questions, and collect their own data,” said Dr. Rebekah Hounsell, an assistant research scientist at NASA’s Goddard Space Flight Center.
However, experts said there’s also a chance that September could pass by without the T CrB nova outburst actually happening.
But while experts may not know exactly when the burst will happen, they do know where it’s expected.
The constellation “Corona Borealis,” also known as the “Northern Crown,” is a small arc found between Boötes and Hercules. NASA announced that the nova is set to appear as a “new” star within that constellation.
This recurring nova is one of only five in the Milky Way Galaxy.
It happens because T CrB is a binary system made up of a red giant and a white dwarf. The unstable red giant begins ejecting its outer layers, which causes the white dwarf to heat up, eventually resulting in a large, thermonuclear explosion — the nova that can be seen from Earth.
To stay updated on when the nova happens, you can follow NASA Universe by clicking here.
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