A Celestial Revival: T Corona Borealis Set to Dazzle Stargazers After Eight Decades

Thu Mar 13 2025 16:36:16 GMT+0200 (Eastern European Standard Time)
A Celestial Revival: T Corona Borealis Set to Dazzle Stargazers After Eight Decades

Astronomers are eagerly preparing for the potential re-emergence of T Corona Borealis, a star that ignites roughly once every 80 years, drawing interest from both seasoned and novice stargazers alike.


After an 80-year wait, the star T Corona Borealis is poised to shine once more, tantalizing astronomers who aim to observe this rare celestial event. Michael Woodman, who first spotted the star as a teenager in 1946, reflects on the excitement of potentially witnessing its brilliance for a second time.


On a chilly night in February 1946, young Michael Woodman made a remarkable astronomical discovery from his bedroom in Newport. As he awaited his father's return, he spotted an unusually bright star in the constellation of Corona Borealis. His keen observation set off a chain of events that led him to be recognized as the first person in the UK to document the appearance of T Corona Borealis—or T Cor Bor—a star system located approximately 3,000 light years away that would briefly shine in the night sky.

This extraordinary sight has remained a memory for Woodman ever since, and at 94, he still recalls the moment vividly, including the personal letter he received from the Astronomer Royal confirming his remarkable find.

Today, as astronomers prepare for another opportunity to observe T Cor Bor, they believe the star might illuminate the skies again, potentially within days, following a cycle of about 80 years post-its last eruption. With telescopes spanning the Dark Skies Reserve in Bannau Brycheiniog, astronomers are directing their efforts at the fainter-than-usual star.

Dr. Jenifer Millard from Fifth Star Labs explains that despite T Cor Bor's current low brightness, astute stargazers with binoculars may catch glimpses longer than those relying on the naked eye. The anticipation comes as experts study how this stellar duo—a white dwarf and a red giant spiraling around each other—creates a massive explosion known as a nova.

The outburst occurs when the compact white dwarf, which emits an intense gravitational pull, siphons material from the larger, dying red giant star. Dr. Jane Clark of the Cardiff Astronomical Society describes how this process creates explosive bursts of light that astronomers eagerly await, likening the brightness to the most extraordinary Christmas tree.

With past false alarms ringing in their ears, astronomers remain hopeful, particularly Dr. Chris North from Cardiff University, who notes a recent dimming in T Cor Bor's appearance might indicate an imminent eruption. As excitement builds, Michael Woodman expresses hope to witness T Cor Bor’s illustrious display once more.

Contemplating the rarity of seeing the star twice in a lifetime, he reflects, “If I see it, I will be the only one who's seen it twice.” Focused on the skies, he hopes to embark on another stargazing adventure, eager to relish this fleeting celestial event that captivates imaginations across the globe.

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