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
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.