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New Study Reveals Pleiades as Stellar Complex Core

11/15/2025

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Summary

Story summary

A new study finds the Pleiades is the core of the larger Greater Pleiades Complex.
The Greater Pleiades Complex spans over 1,900 light-years and contains at least 3,091 stars.
University of North Carolina at Chapel Hill researchers used NASA's Transiting Exoplanet Survey Satellite (TESS), ESA's Gaia, and the Sloan Digital Sky Survey.
They identified stars by shared ages, motions, and chemical compositions.
The findings were published in The Astrophysical Journal.

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Story summary

A new study finds the Pleiades is the core of the larger Greater Pleiades Complex.
The Greater Pleiades Complex spans over 1,900 light-years and contains at least 3,091 stars.
University of North Carolina at Chapel Hill researchers used NASA's Transiting Exoplanet Survey Satellite (TESS), ESA's Gaia, and the Sloan Digital Sky Survey.
They identified stars by shared ages, motions, and chemical compositions.
The findings were published in The Astrophysical Journal.