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  2. March equinox - Wikipedia

    en.wikipedia.org/wiki/March_equinox

    The Indian national calendar starts the year on the day next to the vernal equinox on 22 March (21 March in leap years) with a 30-day month (31 days in leap years), then has 5 months of 31 days followed by 6 months of 30 days. [15]

  3. Position of the Sun - Wikipedia

    en.wikipedia.org/wiki/Position_of_the_Sun

    At one date in the year, the Sun would be directly overhead at the North Pole, so its declination would be +90°. For the next few months, the subsolar point would move toward the South Pole at constant speed, crossing the circles of latitude at a constant rate, so that the solar declination would decrease linearly with time. Eventually, the ...

  4. Subsolar point - Wikipedia

    en.wikipedia.org/wiki/Subsolar_point

    The subsolar point crosses the Equator on the March and September equinoxes. ... is the declination of the Sun in degrees, is the Greenwich Mean Time or UTC ...

  5. Equinox - Wikipedia

    en.wikipedia.org/wiki/Equinox

    A solar equinox is a moment in time ... indicating that at that moment the solar declination is crossing the ... (21 March is the day allocated to it in ...

  6. Solar eclipse of March 21, 2080 - Wikipedia

    en.wikipedia.org/wiki/Solar_eclipse_of_March_21...

    A partial solar eclipse will occur at the Moon's ascending node of orbit on Thursday, March 21, 2080, [1] with a magnitude of 0.8734. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth.

  7. When is the winter solstice? A guide to the shortest day of ...

    www.aol.com/winter-solstice-guide-shortest-day...

    The Earth is tilted approximately 23.5 degrees on its axis, and each solstice is dictated by the amount of solar declination, or "the latitude of Earth where the sun is directly overhead at noon ...

  8. Analemma - Wikipedia

    en.wikipedia.org/wiki/Analemma

    Globes of the Earth often display an analemma as a two-dimensional figure of equation of time ("sun fast") vs. declination of the Sun. The north–south component of the analemma results from the change in the Sun's declination due to the tilt of Earth's axis of rotation as it orbits around the Sun.

  9. Sun path - Wikipedia

    en.wikipedia.org/wiki/Sun_path

    It is the complement to the solar altitude or solar elevation, which is the altitude angle or elevation angle between the sun’s rays and a horizontal plane. [4] [5] At solar noon, the zenith angle is at a minimum and is equal to latitude minus solar declination angle. This is the basis by which ancient mariners navigated the oceans. [6]