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  2. Global surface temperature - Wikipedia

    en.wikipedia.org/wiki/Global_surface_temperature

    The red line shows direct surface temperature measurements since 1880. [ 2] Global surface temperature (GST) is the average temperature of Earth 's surface. It is determined nowadays by measuring the temperatures over the ocean and land, and then calculating a weighted average. The temperature over the ocean is called the sea surface temperature.

  3. Sun - Wikipedia

    en.wikipedia.org/wiki/Sun

    The core of the Sun extends from the center to about 20–25% of the solar radius. [60] It has a density of up to 150 g/cm 3 [61] [62] (about 150 times the density of water) and a temperature of close to 15.7 million kelvin (K). [62] By contrast, the Sun's surface temperature is about 5800 K.

  4. Solar core - Wikipedia

    en.wikipedia.org/wiki/Solar_core

    The core of the Sun is considered to extend from the center to about 0.2 of 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). [ 2]

  5. Solar activity and climate - Wikipedia

    en.wikipedia.org/wiki/Solar_activity_and_climate

    Solar activity and climate. Solar irradiance (yellow) plotted with temperature (red) since 1880. Patterns of solar irradiance and solar variation have been a main driver of climate change over the millions to billions of years of the geologic time scale . Evidence that this is the case comes from analysis on many timescales and from many ...

  6. Solar cycle - Wikipedia

    en.wikipedia.org/wiki/Solar_cycle

    The solar cycle, also known as the solar magnetic activity cycle, sunspot cycle, or Schwabe cycle, is a nearly periodic 11-year change in the Sun 's activity measured in terms of variations in the number of observed sunspots on the Sun's surface.

  7. Sunlight - Wikipedia

    en.wikipedia.org/wiki/Sunlight

    Taken on 20 October 1968 from Apollo 7. Sunlight is a portion of the electromagnetic radiation given off by the Sun, in particular infrared, visible, and ultraviolet light. On Earth, sunlight is scattered and filtered through Earth's atmosphere as daylight when the Sun is above the horizon.

  8. List of countries by average yearly temperature - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    This is a list of countries and sovereign states by temperature.. Average yearly temperature is calculated by averaging the minimum and maximum daily temperatures in the country, averaged for the years 1991 – 2020, from World Bank Group, derived from raw gridded climatologies from the Climatic Research Unit.

  9. List of weather records - Wikipedia

    en.wikipedia.org/wiki/List_of_weather_records

    The highest natural ground surface temperature ever recorded may have been an alleged reading of 93.9 °C (201.0 °F) at Furnace Creek, California, United States, on 15 July 1972. [ 7] In 2011, a ground temperature of 84 °C (183.2 °F) was recorded in Port Sudan, Sudan. [ 8] The theoretical maximum possible ground surface temperature has been ...

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