The star system T Coronae Borealis dramatically brightens every 80 years, making its flare-ups unique and rare astronomical events, with the next expected in 2026.
T Cor Bor's last brightening in 1946 means astronomers eagerly anticipate its next event. Initial signs appeared over a year ago, but the exact timing remains uncertain.
T Cor Borealis is a binary star system consisting of a red giant nearing its life’s end, greatly increasing in luminosity and size as it evolves.
The red giant of T Cor Bor expands to about 75 times the sun’s diameter, suggesting immense size and illuminating changes as it progresses in its life cycle.
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