Parts of sun corona
(This is due to magnetic field lines of earth and solar wind)
An aurora is a natural light display in the sky, predominantly seen in the high latitude (Arctic and Antarctic) regions.The solar wind is a stream of energised, charged particles, primarily electrons and protons, flowing outward from the Sun at speeds as high as 900 km/s and at a temperature of 1 million degrees (Celsius).It has been suggested that the Sun is 1% cooler when it has no sunspot and that this variation in solar radiation might affect the climates of the Earth.Each spot has a black centre or umbra, and a lighter region or penumbra, surrounding it.The individual sunspot has a lifetime ranging from a few days to a few months.Sunspots appear as dark areas because they are about 500-1500☌ cooler than the surrounding chromosphere.
Parts of sun corona Patch#