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Astronomers and stargazers are on high alert in anticipation of an astronomical event poised to light up this summer night sky. NASA announced that the “Blaze Star is coming soon. The appearance of a "new star" in the Milky Way’s Corona Borealis constellation, also known as the Northern Crown, could occur anytime between now and September.

Dr. Rebekah Hounsell, an assistant research scientist at NASA’s Goddard Space Flight Center, described the event as a significant moment for both the scientific community and the general public.

"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," Hounsell said. "It’ll fuel the next generation of scientists."

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Blaze Star

The birth of the Blaze Star is a phenomenon known as a nova. Skywatchers will see a dramatic brightening event caused by a sudden, brief explosion from a white dwarf star. 

Unlike a supernova, which marks the explosive death of a massive star, a nova is a recurring event where the white dwarf remains intact, releasing material in a repetitive cycle that can last for thousands of years.

This binary system consists of a dead white dwarf star and an aging red giant star. The red giant, having exhausted its hydrogen fuel, becomes unstable and sheds its outer layers, which are then absorbed by the white dwarf. This exchange of matter heats the white dwarf’s atmosphere until a thermonuclear reaction occurs, resulting in a nova.

T Coronae Borealis

T Coronae Borealis has a history of explosive events approximately every 80 years. The last recorded nova was in 1946, and astronomers are now closely monitoring the system for its next eruption. 

William J. Cooke of NASA’s Meteoroid Environments Office explained, "Most novae happen unexpectedly, without warning. However, T Coronae Borealis is one of 10 recurring novae in the galaxy.

 We know from the last eruption back in 1946 that the star will get dimmer for just over a year before rapidly increasing in brightness. T Coronae Borealis began to dim in March of last year, so some researchers are expecting it to go nova between now and September."

Sky Event Details

Located 3,000 light-years from Earth, T Coronae Borealis is typically too dim to be seen with the naked eye. However, during the nova, it is expected to reach a brightness comparable to Polaris, the North Star.