supergiant star

noun

1. Astronomy.,  an exceptionally luminous star whose diameter is more than 100 times that of the sun, as Betelgeuse or Antares.

Word History and Origins

Origin of supergiant star¹

First recorded in 1925–30

Example Sentences

When combined with archival observations from the Hubble Space Telescope, the data revealed that the blast originated from a massive red supergiant star wrapped in an unexpected blanket of dust.

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This rare supernova, called 2023ufx, originated from the core collapse of a red supergiant star, exploded on the outskirts of a nearby dwarf galaxy.

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Binary stripped stars have been previously evoked to explain why a third of core-collapse supernovae contain much less hydrogen than a typical explosion of a Red Supergiant star.

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While seemingly small, that amount is “more than we would expect from a red supergiant star,” Jacobson-Galán says.

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Supernova 2023ixf may give some much-needed answers on the matter, among the other particulars of how a red supergiant star collapses and ultimately explodes.

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