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The core of the Sun is considered to extend from the center to about 0.2 of the solar radius (139,000 km; 86,000 mi). [1] It is the hottest part of the Sun and of the Solar System . It has a density of 150,000 kg/m 3 (150 g/cm 3 ) at the center, and a temperature of 15 million kelvins (15 million degrees Celsius; 27 million degrees Fahrenheit).
The Sun is the star at the center of the Solar System.It is a massive, nearly perfect sphere of hot plasma, heated to incandescence by nuclear fusion reactions in its core, radiating the energy from its surface mainly as visible light and infrared radiation with 10% at ultraviolet energies.
According to the Los Angeles Almanac, 57.2 °C (135.0 °F) was the hottest temperature historically recorded among 20 Los Angeles County weather stations. However, a nearby UCLA weather station less than three miles away recorded nothing close to this extreme claim. The Los Angeles Almanac has since stated "we offer no grounds for challenging ...
It is sunlight that is Thomson-scattered by free electrons in the hot plasma of the Sun's outer atmosphere. The continuum nature of the spectrum arises from Doppler broadening of the Sun's Fraunhofer absorption lines in the reference frame of the (hot and therefore fast-moving) electrons. Although the K-corona is a phenomenon of the electrons ...
Sunday was the hottest day ever recorded on Earth, according to data from the European Union’s Copernicus Climate Change Service.. The average global temperature reached 17.09 degrees Celsius ...
The month of July 2023 was the hottest month on record globally. [21] September 2023 was the most anomalously warm month, averaging 1.75 °C (3.15 °F) above the preindustrial average for September. [ 22 ]
The planet’s 10 hottest years since 1850 have all occurred in the past decade, according to NOAA. The new record comes as little surprise after a year beset by extremes.
The exact nature of R136a was unclear and a subject of intense discussion. Estimates that the brightness of the central region would require as many as 100 hot O class stars within half a parsec at the centre of the cluster led to speculation that a star 3,000 times the mass of the Sun was the more likely explanation. [9]