The Corona

Corona means Crown. The halos are CORONAS's look around the Sun in Eclipse. Although there is always there that expands millions of kilometers into space. What's interesting about it is the fact, the Corona is hotter than the Sun of more than one million degrees Kelvin, or 106. Does anyone know how thermal energy can be transferred and increased from the solar surface into The Corona. This became the source of the heat which is still not fully understood.

The light from the Corona comes from three main sources, which are called by different names even though they all share the same volume of space.

K-Corona (K for kontinuierlich, "continuous" in Germany) is created by sunlight scattering off free electrons; Doppler broadening the reflected photospheric absorption completely obscures them, giving the appearance of a spectral line absorption without kontinuum. F-Corona (F for Fraunhofer) is created by sunlight bouncing off dust particles, and can be observed due to its light contains absorption Fraunhofer lines seen in raw sunlight; F-Corona extends to very high elongation angles from the Sun, which is called the zodiacal light. E-Corona (E for emission) is due to the spectral emission lines produced by the ion that is present in the coronal plasma, but can be observed in broad or forbidden or hot spectral emission lines and is the main source of the Corona's composition.