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Loading contentBetelgeuse is a red supergiant: a massive star that has exhausted the hydrogen in its core, swollen enormously, and cooled at the surface to a reddish glow. Its radius is so large that, placed at the Sun's position, it would engulf the inner Solar System.
Betelgeuse is a semiregular variable star — its brightness rises and falls as the star pulsates and sheds material. A pronounced dimming drew wide attention before the star recovered, a reminder that supergiants are restless rather than steady.
As a massive star in a late stage of life, Betelgeuse is expected to end as a core-collapse supernova. On human timescales it is unpredictable, and could be tens of thousands of years away; the explosion would pose no danger to Earth but would be a spectacular sight.
How this connects across Asteria Star — scientific, cultural, and astrological links are kept separate.
Verified imagery of Betelgeuse will appear here.
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