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Nova burst expected Feb-Sept, visible without telescope: NASA

  • A star system, T Coronae Borealis (T CrB), located 3,000 light-years away from Earth, is predicted to undergo a nova outburst, becoming visible to the unaided eye
  • This celestial event, occurring approximately every 80 years, last observed in 1946, is anticipated to peak between February and September 2024, offering astronomers a rare viewing opportunity
  • T CrB, normally too dim to see without assistance, will temporarily brighten to magnitude +2, comparable to the North Star, Polaris, and will be observable for several days with the unaided eye and just over a week with binoculars before dimming again

24 Mar 2024

 Nova burst expected Feb-Sept, visible without telescope: NASA

Astronomers are eagerly awaiting the rare celestial spectacle as T Coronae Borealis (T CrB), a star system located 3,000 light-years away, prepares for a nova outburst visible to the unaided eye. This phenomenon, occurring roughly every 80 years, presents a once-in-a-lifetime viewing opportunity, with the last eruption observed in 1946.

During the anticipated event, T CrB, typically a dim magnitude +10, will temporarily surge to magnitude +2, similar in brightness to the North Star, Polaris. This enhanced visibility will allow observers to witness the nova for several days without aids and just over a week with binoculars before its brightness diminishes, possibly for another 80 years. As astronomers await the spectacle, they recommend becoming familiar with the constellation Corona Borealis (Northern Crown), where the outburst will manifest as a "new" bright star, offering a unique astronomical experience to skywatchers.

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