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The Sun is classed as a G2 star, [66] meaning it is a G-type star, with 2 indicating its surface temperature is in the second range of the G class. The solar constant is the amount of power that the Sun deposits per unit area that is directly exposed to sunlight.
Helios with a radiate halo driving his chariot (Ilion, 4th century BC; Pergamon Museum). A solar symbol is a symbol representing the Sun.Common solar symbols include circles (with or without rays), crosses, and spirals.
The most usual form, often called sun in splendour or in his glory, consists of a round disc with the features of a human face surrounded by twelve or sixteen rays alternating wavy and straight. [ 2 ] [ 3 ] The alternating straight and wavy rays are often said to represent the light and heat of the sun respectively.
In the Bible, Malachi 4:2 mentions the "Sun of Righteousness" (sometimes translated as the "Sun of Justice"), [15] [16] which some Christians have interpreted as a reference to the Messiah . [17] In ancient Roman culture, Sunday was the day of the sun god. In paganism, the Sun was a source of life, giving warmth and illumination.
This will rise to 10 −6 M ☉ /year on the asymptotic giant branch, before peaking at a rate of 10 −5 to 10 −4 M ☉ /year as the Sun generates a planetary nebula. By the time the Sun becomes a degenerate white dwarf, it will have lost 46% of its starting mass. [15] The mass of the Sun has been decreasing since the time it formed.
Surya, the Sun god, rides across the sky in a horse-drawn chariot à la Helios and Sol. Aruna, charioteer of Surya, god of the morning Sun. Aryaman, god of the midday Sun. Savitr, god of the twilight Sun, also known as sunrise and sunset. Mitra, often associated with the Sun. Mihir, meaning Sun. Tapati, Sun goddess.
Sun sign astrology is a pseudoscience [1] [2] and the form of astrology most commonly found in many newspaper and magazine columns. Scientific investigations of the theoretical [ 3 ] : 249, [ 4 ] basis and experimental verification of claims [ 5 ] [ 6 ] have shown it to have no scientific validity or explanatory power .
A green lion consuming the Sun is a common alchemical image and is seen in texts such as the Rosary of the Philosophers. The symbol is a metaphor for aqua regia (the green lion) consuming matter (the Sun), gold. In alchemical and Hermetic traditions, suns are used to symbolize a variety of concepts, much like the Sun in astrology.