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The Sun is the star at the center of the Solar System. It is a massive, nearly perfect sphere of hot plasma, heated to incandescence by nuclear fusion reactions in its core, radiating the energy from its surface mainly as visible light and infrared radiation with 10% at ultraviolet energies.
The Sun has been called by many names. The Latin word for Sun is “sol,” which is the main adjective for all things Sun-related: solar. Helios, the Sun god in ancient Greek mythology, lends his name to many Sun-related terms as well, such as heliosphere and helioseismology.
The Sun's gravity holds the solar system together, keeping everything – from the biggest planets to the smallest particles of debris – in its orbit. The connection and interactions between the Sun and Earth drive the seasons, ocean currents, weather, climate, radiation belts and auroras.
22 maj 2017 · Bottom line: The International Astronomical Union hasn’t sanctioned an official name for our sun, and our sun doesn’t have a generally accepted and unique proper name in the English...
How did the Sun get its name? The word sun comes from the Old English word sunne, which itself comes from the older Proto-Germanic language's word sunnōn. In ancient times the Sun was widely seen as a god, and the name for Sun was the name of that god.
15 wrz 2018 · The sun formed more than 4.5 billion years ago, when a cloud of dust and gas called a nebula collapsed under its own gravity. As it did, the cloud spun and flattened into a disk, with our...
1 cze 2015 · Throughout human history, the sun’s powerful energy has long assured its role as the undisputed “star” of our solar system. The ancient Greeks personified the sun as a handsome god named Helios. His astronomical pedigree was impeccable: He was the son of the Titan Hyperion and the Titaness Theia.
