Please refresh the page and try again. "Since the sun's source of energy is at the center, on a simple level, we would expect the corona — the outermost layer — to be the coolest." So, how hot is the sun? Temperatures range from 1.7 million degrees F (1 million degrees C) to more than 17 million F (10 million C), according to the NSO. Future US, Inc. 11 West 42nd Street, 15th Floor, Are you familiar with the phenomenon of sonoluminescence? When sunlight hits the moon's surface, the temperature can reach 260 degrees Fahrenheit (127 degrees Celsius). Thank you for signing up to Live Science. The chromosphere, the next layer of the sun's atmosphere is a bit cooler — about 7,800 degrees F (4,320 degrees C). Temperatures rise dramatically in the corona, which can also only be seen during an eclipse as plasma streams outward like points on a crown. At the core of the sun, gravitational attraction produces immense pressure and temperature, which can reach more than 27 million degrees Fahrenheit (15 million degrees Celsius). At temperatures of 15 million K and matter compressed to densities 150 times as great as liquid water on Earth, it's hot and dense enough for nuclear fusion to … Thank you for signing up to Space. Michelle Starr April 30, 2013 5:53 p.m. PT At the sun's core is gravitational attraction which results in immense temperature and pressure. The surface of the Sun is called photosphere. How hot is each one of the layers of the sun? The glowing hot gas traces out the twists and loops of the Sun’s magnetic field lines. The white-hot plasma we see at the center of these cells rises to the surface, carrying heat from the sun's core. We're also on Facebook & Google+. "The corona is incredibly hot, hundreds of times hotter than the layers below," Bernhard Fleck, a European Space Agency project scientist for NASA's Solar and Heliospheric Observatory (SOHO) said in a statement. Additional reporting by Nola Taylor Redd, Space.com contributor. The temperature of the sun at its core is 27 million degrees, but only about 10 million degrees on its surface. That energy then radiates outward in the sun's inner radiative zone, which lacks the heat and pressure to cause fusion. It is here that the sun's radiation is detected as visible light. "Thanks to SOHO, there's a growing public recognition that we live in the extended atmosphere of a magnetically active star," SOHO project scientist Joe Gurman said in the same statement. The corona can get surprisingly hot, comparable to the body of the sun. Cooler than the center of the Sun, but not by very much! Convection Zone: drops from 2 million K to 5800K in this zone. The centre of the Sun: about 15 million kelvin (K). According to the National Solar Observatory (NSO), chromosphere literally means "sphere of color." © They appear as dark spots in the Sun’s surface. Hydrogen atoms get compressed and fuse together, creating helium. That's much cooler than the blazing core, but it's still hot enough to make carbon, like diamonds and graphite, not just melt, but boil. Sunspots are particular areas of the Sun which consist of cooler gases and coupled with disturbances. In our world, plasma is known to produce heat in the temperature range between 8000°C and 25,000°C, so it’s pretty safe to assume that the temperature of a lightsaber’s plasma blade falls within that range. NY 10036. Yep, the answer is a bolt of lightning, which can reach temperatures of roughly 30,000 kelvins (53,540 degrees Fahrenheit). The answer is different for each part of the sun. 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