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  2. Analemma - Wikipedia

    en.wikipedia.org/wiki/Analemma

    Simply measuring the distance along the horizon between these points, in angular terms (comparing it with the length of the analemma, as described above), gives the angle between due east or west and the direction of sunrise or sunset. Whether the sunrise or sunset is north or south of due east or west is clear from the diagram.

  3. Sun path - Wikipedia

    en.wikipedia.org/wiki/Sun_path

    Sun path, sometimes also called day arc, refers to the daily (sunrise to sunset) and seasonal arc -like path that the Sun appears to follow across the sky as the Earth rotates and orbits the Sun. The Sun's path affects the length of daytime experienced and amount of daylight received along a certain latitude during a given season.

  4. Midnight sun - Wikipedia

    en.wikipedia.org/wiki/Midnight_sun

    Midnight sun, also known as polar day, is a natural phenomenon that occurs in the summer months in places north of the Arctic Circle or south of the Antarctic Circle, when the Sun remains visible at the local midnight. When midnight sun is seen in the Arctic, the Sun appears to move from left to right. In Antarctica, the equivalent apparent ...

  5. Equinox - Wikipedia

    en.wikipedia.org/wiki/Equinox

    For a brief period lasting approximately four days, both North and South Poles are in daylight. [c] For example, in 2021 sunrise on the North Pole is 18 March 07:09 UTC, and sunset on the South Pole is 22 March 13:08 UTC. Also in 2021, sunrise on the South Pole is 20 September 16:08 UTC, and sunset on the North Pole is 24 September 22:30 UTC ...

  6. Polar night - Wikipedia

    en.wikipedia.org/wiki/Polar_night

    Polar night and Aurora australis at the South Pole, Antarctica. Civil polar twilight in Naryan-Mar, Russia. Polar night is a phenomenon that occurs in the northernmost and southernmost regions of Earth when the Sun remains below the horizon for more than 24 hours. This only occurs inside the polar circles. [1]

  7. Position of the Sun - Wikipedia

    en.wikipedia.org/wiki/Position_of_the_Sun

    The position of the Sun in the sky is a function of both the time and the geographic location of observation on Earth 's surface. As Earth orbits the Sun over the course of a year, the Sun appears to move with respect to the fixed stars on the celestial sphere, along a circular path called the ecliptic. Earth's rotation about its axis causes ...

  8. Sunrise equation - Wikipedia

    en.wikipedia.org/wiki/Sunrise_equation

    Sunrise equation. A contour plot of the hours of daylight as a function of latitude and day of the year, using the most accurate models described in this article. It can be seen that the area of constant day and constant night reach up to the polar circles (here labeled "Anta. c." and "Arct. c."), which is a consequence of the earth's inclination.

  9. South Pole - Wikipedia

    en.wikipedia.org/wiki/South_Pole

    The Geographic South Pole is marked by the stake on the right NASA image showing Antarctica and the South Pole in 2005. The South Pole, also known as the Geographic South Pole or Terrestrial South Pole, is the southernmost point on Earth and lies antipodally on the opposite side of Earth from the North Pole, at a distance of 20,004 km (12,430 miles) in all directions.