solar day

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Diverse elementary school children wearing school uniforms running outside of school. Boys girls

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Plato (left) and Aristotle, detail from School of Athens, fresco by Raphael, 1508-11; in the Stanza della Segnatura, the Vatican. Plato points to the heavens and the realm of Forms, Aristotle to the earth and the realm of things.

Plato and Aristotle: How Do They Differ?

Saint Lucia Day. Young girl wears Lucia crown (tinsel halo) with candles. Holds Saint Lucia Day currant laced saffron buns (lussekatter or Lucia's cats). Observed December 13 honor virgin martyr Santa Lucia (St. Lucy). Luciadagen, Christmas, Sweden

7 Winter Solstice Celebrations From Around the World

Leonardo da Vinci (1452-1519), Italian Renaissance painter from Florence. Engraving by Cosomo Colombini (d. 1812) after a Leonardo self portrait. Ca. 1500.

10 Famous Artworks by Leonardo da Vinci

Confucius statue at a Confucian Temple in Shanghai, China. Confucianism religion

What is the Difference Between Daoism and Confucianism?

Rural Irish landscape, Sligo, Ireland.

Why Is Ireland Two Countries?

solar day

astronomy

Also known as: sol

Learn about this topic in these articles:

basic calculation of time

In day
The apparent solar day is the time between two successive transits of the Sun over the same meridian. Because the orbital motion of the Earth makes the Sun seem to move slightly eastward each day relative to the stars, the solar day is about four minutes longer…
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Mars

In Mars: Basic astronomical data
6 Martian solar days, called sols. Because of the elliptical orbit, southern summers are shorter (154 Martian days) and warmer than those in the north (178 Martian days). The situation is slowly changing, however, such that 25,000 years from now the northern summers will be the shorter…
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