The Sun is the star at the center of the Solar System. It is almost perfectly spherical and consists of hot plasma interwoven with magnetic fields.
The Sun formed about 4.6 billion years ago from the gravitational collapse of a region within a large molecular cloud. Most of the matter gathered in the center, while the rest flattened into an orbiting disk that would become the Solar System. The central mass became increasingly hot and dense, eventually initiating thermonuclear fusion in its core. It is thought that almost all other stars form by this process.
This is an ancient solar symbol featuring a circle with its center marked with a dot (Unicode U+2609 ☉ preferably or U+2299 ⊙). It is the astronomical and astrological symbol for the Sun, and the ancient Egyptian sign for "sun" or "Ra" in the hieroglyphic writing system. The character for "sun" or "day" in early Chinese script was similar, but it has become square in modern script: 日 (ri).
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Planets in astrology have a meaning different from the modern astronomical understanding of what a planet is. Before the age of telescopes, the night sky was thought to consist of two very similar co… read more »
More symbols in Astronomical Symbols:
Astronomical symbols are symbols used to represent various celestial objects, theoretical constructs and observational events in astronomy. The earliest forms of these symbols appear in Greek papyri … read more »
More symbols in Astrological Symbols:
Astrological symbols are images used in various astrological systems to denote relevant objects. Symbols for the classical planets, zodiac signs, aspects, lots, and the lunar nodes appear in the me… read more »