We generally split the Sun’s atmosphere into four different parts; the heliosphere, the corona, the transition region and the chromosphere. One of the most misunderstood things about the Sun is why planets are even in orbit of it in the first place. And it can be difficult to understand....
Helium was discovered in the gaseous atmosphere surrounding theSunby the French astronomerPierre Janssen, who detected a bright yellow line in the spectrum of the solarchromosphereduring aneclipsein 1868; this line was initially assumed to represent the elementsodium. That same year the English astrono...
The Sun is classified as aG2 V star, with G2 standing for the second hottest stars of the yellow G class—of surface temperature about 5,800kelvins(K)—and the V representing a main sequence, ordwarf, star, the typical star for thistemperatureclass. (G stars are so called because of...