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单词 chromosphere
释义

Definition of chromosphere in English:

chromosphere

noun ˈkrəʊməsfɪəˈkroʊməˌsfɪr
Astronomy
  • A reddish gaseous layer immediately above the photosphere of the sun or another star which, together with the corona, constitutes its outer atmosphere.

    Example sentencesExamples
    • For decades astronomers labored to get good photographs of the chromosphere, and in particular its spectrum.
    • The chromosphere is the first layer of atmosphere above the sun's surface layer.
    • Prominences, flares, plages, and other features of the solar chromosphere can be observed in hydrogen light.
    • But the hotter hydrogen in the chromosphere and corona above it is madly emitting at the same wavelength.
    • Solar flares appear as sudden, intense flashes in the chromosphere of the Sun.

Derivatives

  • chromospheric

  • adjective krəʊməˈsfɛrɪk
    Astronomy
    • The rings are images in the chromospheric and coronal emission lines and the streaks are the continuous emission from the corona.
      Example sentencesExamples
      • The average chromospheric activity level in the early F-type stars is statistically identical in the three clusters and in field dwarfs.
      • This expansion of chromospheric plasma up into the corona during a flare is generally called chromospheric evaporation.
      • Thus, detection of this resonance will provide an important new constraint on chromospheric models.
      • As the Sun went dark the corona became visible to all, although not much of a chromospheric display was seen, with only one notable prominence, perhaps two close by each other.

Origin

Mid 19th century: from chromo-2 'colour' + sphere.

 
 

Definition of chromosphere in US English:

chromosphere

nounˈkroʊməˌsfɪrˈkrōməˌsfir
Astronomy
  • A reddish gaseous layer immediately above the photosphere of the sun or another star. Together with the corona, it constitutes the star's outer atmosphere.

    Example sentencesExamples
    • But the hotter hydrogen in the chromosphere and corona above it is madly emitting at the same wavelength.
    • Solar flares appear as sudden, intense flashes in the chromosphere of the Sun.
    • Prominences, flares, plages, and other features of the solar chromosphere can be observed in hydrogen light.
    • For decades astronomers labored to get good photographs of the chromosphere, and in particular its spectrum.
    • The chromosphere is the first layer of atmosphere above the sun's surface layer.

Origin

Mid 19th century: from chromo- ‘color’ + sphere.

 
 
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更新时间:2024/9/20 22:34:26