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Structure[change | change source]
The stellar atmosphere is divided into several layers:
- The photosphere is the lowest and coolest layer of the stellar atmosphere. The Sun's photosphere has a temperature of 5,770 K to 5,780 K.
- The chromosphere is the next layer after the photosphere. The chromosphere is above the photosphere. Its about 10 times the temperature of the photosphere.
- The transition region is the next layer after the chromosphere. It is hotter than the chromosphere.
- The outermost part of the stellar atmosphere is the corona. It has a temperature of 1,000,000 K. It seems that only some giant stars, and very few supergiant stars, have a corona.
References[change | change source]
- ""Beyond the Blue Horizon" -- A Total Solar Eclipse Chase". ScienceDaily. Retrieved 2020-09-23.
- Mariska, John T. (1992). The solar transition region. Cambridge [England]: Cambridge University Press. ISBN 0-521-38261-0. OCLC 25317631.
- Altrock, Richard C. (2004). "The Temperature of the Low Corona During Solar Cycles 21–23". Solar Physics. 224 (1–2): 255–268. doi:10.1007/s11207-005-6502-4. ISSN 0038-0938.
- "Science". imagine.gsfc.nasa.gov. Retrieved 2020-09-23.