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supergiant star

American  

noun

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


Etymology

Origin of supergiant star

First recorded in 1925–30


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The meteors will appear to originate from the constellation of Orion, near the red supergiant star Betelgeuse.

From BBC ● Oct. 20, 2026

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

From Science Daily ● Nov. 25, 2024

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.

From Scientific American ● Jul. 21, 2023

The previous record-holder, Icarus, also a blue supergiant star spotted by Hubble, formed 9.4 billion years ago.

From Seattle Times ● Mar. 30, 2022

The cool supergiant star Antares can be seen as a big, reddish patch in the lower-left part of the picture.

From Textbooks ● Oct. 13, 2016

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