If a person were to stand on the sun's corona they wouldn't burn, they would freeze in the near vacuum of the corona.
Though the corona's temperature is high it's molecules are so far apart that the gases release little heat. Structures visible in the corona at such times suggest that they are shaped by magnetic fields, and therefore, that the corona consists of plasma. So where one person measured can be further out than another leading to that person determining a lower temperature. During a total eclipse of the Sun, when for a few minutes the Moon completely covers the Sun's face, a glow appears around the darkened Sun-the solar corona, the Sun's outermost atmosphere. The variance in temperature is also due to the fact that the sun's corona has no defined boundary. We only need about 1kW per square metre of the Suns surface to heat the corona to its several million degree temperature. This is because the temperature drops slowly as you move from the corona into space. Spectroscopic measurements indicate strong ionization in the corona and a plasma temperature in excess of 1000000 kelvins, much hotter than the surface of the Sun, known as the photosphere. It is most easily seen during a total solar eclipse, but it is also observable with a coronagraph. The Sun's corona lies above the chromosphere and extends millions of kilometres into outer space. In doing the research I noted that the temperature of the corona was mostly recorded in a range such as 1,000,000 to 2,000,000 K, whereas the temperatures of the other layers were more exact numbers. A corona is the outermost layer of a star's atmosphere. The temperature of the corona is the second highest of all the other layers of the sun topped only by the temperature of the core. Just above the core is the photosphere, above that the chromosphere, and above that the corona the outer most layer of the sun's atmosphere. The main layer is the innermost called the core. "Above the chromosphere is a region called the corona which has a temperature from 2,000,000 ☏ - 3,000,000 ☏" "1,000,000 K at the outer atmosphere (the corona)" New York: Oxford University Press, 1995: 106. "The corona has a temperature of about 2,000,000 K"Ĭlark, Stuart. The corona also has nothing to do with the Suns outer atmosphere visible.
"Gas particles in the corona can reach temperatures of up to 1,700,000 ☌" The coronae is much smaller than the 22 halo which can also ring the sun and moon. Engelwood Cliffs, NJ: Prentice Hall, 1987: 73.