Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun astronomy A
star which has lost most or all of itshydrogen , leaving just acore of helium.
Etymologies
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Examples
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The team concluded that the companion must be a helium star — one whose envelope of hydrogen has been stripped away.
Rare ‘spider star’ spotted consuming its companion Davide Castelvecchi 2025
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