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Ancient Star HD 219134 Revealed: 10.2 Billion Years Old

5/13/2025

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Summary

Story summary

Astronomers at the W. M. Keck Observatory have unveiled fascinating insights about the ancient star HD 219134, located 21 light-years away. Through asteroseismology, they revealed this celestial giant is 10.2 billion years old and 4% smaller than earlier estimates. Remarkably, it also boasts at least five planets, deepening our understanding of the cosmos.

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Story summary

Astronomers at the W. M. Keck Observatory have unveiled fascinating insights about the ancient star HD 219134, located 21 light-years away. Through asteroseismology, they revealed this celestial giant is 10.2 billion years old and 4% smaller than earlier estimates. Remarkably, it also boasts at least five planets, deepening our understanding of the cosmos.