main sequence


Definition of main sequence

: the group of stars that on a graph of spectrum versus luminosity forms a band comprising 90 percent of stellar types and that includes stars representative of the stages a normal star passes through during the majority of its lifetime

Examples of main sequence in a Sentence

Recent Examples on the Web There are many different types of main sequence stars. Jennifer Leman, Popular Mechanics, "What Are Stars?: A Guide," 13 June 2020 Our sun, a yellow dwarf, is currently in the main sequence stage of its life. Jennifer Leman, Popular Mechanics, "Our Swollen Sun Will Someday Shatter Everything in the Asteroid Belt," 17 Feb. 2020 Along with main sequence and white dwarf stars, other groups include dwarfs, giants, and supergiants. Catherine Zuckerman, National Geographic, "Everything you wanted to know about stars," 20 Mar. 2019 Most of the stars in our galaxy, including the sun, are categorized as main sequence stars. Catherine Zuckerman, National Geographic, "Everything you wanted to know about stars," 20 Mar. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'main sequence.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of main sequence

1925, in the meaning defined above

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Time Traveler for main sequence

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The first known use of main sequence was in 1925

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Statistics for main sequence

Last Updated

16 Aug 2020

Cite this Entry

“Main sequence.” Dictionary, Merriam-Webster, Accessed 26 Sep. 2020.

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