main sequence

noun

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 Stars spend a majority of their lives in the main sequence phase. Jennifer Leman, Popular Mechanics, 13 June 2020 There are many different types of main sequence stars. Jennifer Leman, Popular Mechanics, 13 June 2020 Our sun, a yellow dwarf, is currently in the main sequence stage of its life. Jennifer Leman, Popular Mechanics, 17 Feb. 2020 Along with main sequence and white dwarf stars, other groups include dwarfs, giants, and supergiants. Catherine Zuckerman, National Geographic, 20 Mar. 2019 Most of the stars in our galaxy, including the sun, are categorized as main sequence stars. Catherine Zuckerman, National Geographic, 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

Time Traveler

The first known use of main sequence was in 1925

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Dictionary Entries Near main sequence

mainsail

main sequence

main shaft

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Cite this Entry

“Main sequence.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/main%20sequence. Accessed 24 Sep. 2021.

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More from Merriam-Webster on main sequence

Britannica.com: Encyclopedia article about main sequence

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