chromosphere

American  

[kroh-muh-sfeer] / ˈkroʊ məˌsfɪər /

noun

Astronomy.

1. a scarlet, gaseous envelope surrounding the sun outside the photosphere, from which enormous quantities of hydrogen and other gases are erupted.

2. a gaseous envelope surrounding a star.

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chromosphere British  

/ ˈkrəʊməˌsfɪə /

noun

1. a gaseous layer of the sun's atmosphere extending from the photosphere to the corona and visible during a total eclipse of the sun

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chromosphere Scientific  

/ krō′mə-sfîr′ /

1. A glowing, transparent layer of gas surrounding the photosphere of a star. The Sun's chromosphere is several thousand kilometers thick, is composed mainly of hydrogen at temperatures of 6,000° to 20,000°K, and gives off reddish light.

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Other Word Forms

• chromospheric
  adjective

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Etymology

Origin of chromosphere

First recorded in 1865–70; chromo- + -sphere

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Example Sentences

See Examples For:

chromosphere

This network, known as the magnetic canopy, extends through the chromosphere, a layer of the solar atmosphere located above the Sun's visible surface.

From Science Daily ● Oct. 24, 2026

And just above the visible surface sits a thin, pinkish layer called the chromosphere - only a few thousand kilometres thick.

From BBC ● Aug. 11, 2026

But total eclipses even allow them a rare glimpse of the chromosphere, the layer of atmosphere between the corona and the surface.

From Barron's ● Aug. 5, 2026

The spacecraft is equipped with seven payloads to study the sun’s corona, chromosphere, photosphere and solar wind, the Indian Space Research Organization said.

From Seattle Times ● Sep. 1, 2023

The eruptive prominences spurt up directly from the chromosphere with immense speeds, and change their shape with great rapidity.

From Astronomy of To-day A Popular Introduction in Non-Technical Language by Cecil Goodrich Julius Dolmage

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