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A white sun in the middle, with 12 white rays with pointed angles. There is a blue ring between the white sun and the white rays with pointed angles. The position, angle and ratio of each subparagraph of the previous article are as follows: The center of the blue background circle is the center of the white sun.
The Sun emits light across the visible spectrum, so its color is white, with a CIE color-space index near (0.3, 0.3), when viewed from space or when the Sun is high in the sky. The Solar radiance per wavelength peaks in the green portion of the spectrum when viewed from space.
The earliest understanding of the Sun was that of a disk in the sky, whose presence above the horizon creates day and whose absence causes night. In the Bronze Age , this understanding was modified by assuming that the Sun is transported across the sky in a boat or a chariot , and transported back to the place of sunrise during the night after ...
The ecliptic is the apparent path of the Sun throughout the course of a year. [4] Because Earth takes one year to orbit the Sun, the apparent position of the Sun takes one year to make a complete circuit of the ecliptic. With slightly more than 365 days in one year, the Sun moves a little less than 1° eastward [5] every day.
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 .
The width is not affected, so the Sun appears wider than it is high. The Sun appears larger at sunrise than it does while higher in the sky, in a manner similar to the Moon illusion. The Sun appears to rise above the horizon and circle the Earth, but it is actually the Earth that is rotating, with the Sun remaining fixed.
Once the sun rises in the East the angle acts in a similar fashion until the sun begins to move across the sky. As the sun moves across the sky the angle is both zero and high along the line defined by the sun, the zenith, and the anti-sun. It is lower South of this line and higher North of this line.
up to one Sun or Moon diameter (about 0.5° or 30') every 2 minutes; up to one diameter of the planet Venus in inferior conjunction (about 1' or 60") about every 4 seconds; 2,000 diameters of the largest stars per second; Star trail and time-lapse photography capture diurnal motion blur. The apparent motion of stars near the celestial pole ...
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