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enotechris eNotes educator| Certified Educator

The three layers of the sun's atmosphere are the Photosphere, Chromosphere, and Corona.  The Photosphere contains the sunspots, the Chromosphere, the solar flares, and the Corona contains the solar prominences.  The Corona at distance becomes the solar wind and extends for millions of miles.  Recently, scientists have discovered a 9 day cycle to Coronal emissions; one scientist reports that the Earth is essentially within the outer sun layer!

astrosonu | Student


astrosonuthird | Student

The sun's atmosphere is extreamely very very hot. We will be fried if we go near it. The sun's atmosphere has three layers -


* photosphere

* Chromosphere

* Corona


In the photosphere we see the sun spots which are cooler than the other surface. It is 4500 degree celcius. And the rest of the photosphere is about 6000 degree celsius.



The solar radiations for ex = Ultaviolet Rays come from the chronosphere. And its thickness is about 10,000 km.



The corana is the outer and the inner core of the sun. Which is too hot to fry an  egg. It is millions degree celcius. And it sends plasma waves which is called solar winds.

giorgiana1976 | Student

The Sun is compound from a CENTRAL PART (Sun's "inner") and the solar atmosphere.

The solar atmosphere is made of three parts:  Photosphere, Chromosphere, Corona.

  • THE BODY OF THE SUN, OR SUN'S INNER, concentrates the most of this star's weight and hydrogen is prevalent. The mainly features are the highest temperatures (about 15 millions Celsius degrees) and very high pressures, also. Due to these features, the matter is in a stage of plasma. The Earth is receiving just the second billion part from the total energy sent forth by the Sun.
  • PHOTOSPHERE (solar atmosphere base) is the bright outer layer of the Sun. This one, has a small thickness, about 500 Km and 6000 Celsius degrees. In this layer, darker parts show up and they are called "solar spots". These solar spots are caused by the lower temperature, about 4500 Celsius degrees.
  • CHROMOSPHERE, the layer which is surrounding the Photosphere and it has a thickness of 10000 km and rising to exterior temperatures. During periods of maximum activities, solar eruptions  are happening. Due to solar eruption, solar radiations, which are coming towards Earth, are increasing.
  • CORONA is the outer layer of solar atmosphere, and it has a thickness of millions of kilometres. It is made of plasma (ionizated gasses), with temperatures which tends to millions degrees. Corona is sending forth plasma waves, called solar winds, which come very close to our planet.