Geography of the Sun

Formation

The sun is the star in the centre of the universe and has huge effects on the earth and other planets in the solar system. the sun formed 4.6 billion years ago. The sun formed the same way that Neptune formed. The particles of hydrogen and helium where drawn together by gravity to form the sun. As we already know, the rest of the particles left over, some 0.1 per cent of the original amount, formed the rest of the planets in the solar system.

Structure and atmsophere

The sun has a very different internal composition to planets or moons. The sun has 6 main layers: the core, the radioactive zone, the convective zone, the photosphere, the chromosphere and the corona. The core contains hydrogen atoms at over 15 million degrees celcius. Thermonuclear, or nuclear fusion, occurs here. This is where the sun produces its energy from. The energy from the core collects radioactive molecules here. The convective zone brings energy from the radioactive zone to the surface by convection currents, similar to the convection currents that Earth has under its crust. The photoshere is the surface of the sun and the part we see from eart. Here, the temperature is a much cooler 6000 degrees celcius. The chromoshere is above the photosphere and can only be viewed with the naked eye during a total solar eclipse. The final layer, the corona, is mostly made up of plasma. Plasma, by the way is a different state of matter to solids liquids and gases. Again, the corona is difficult to see.

Life?

No way! There is absolutely no possible way of humans ever living on, let alone surviving on the sun. The main issue is the temperature. Even in the coolest regions, it is over 6000 degress celcius meaning we would incinerate instantaneously. other problems we would encounter include the massive levels of radiation, no oxygen in the atmosphere and no water.















Sources used:Wikipedia.com, Space.com, airandspace.si.edu, passmyexams.com
Images used:http://www.pmfias.com/wp-content/uploads/2015/12/Sun-Internal-Structure-Atmosphere.jpg, https://www.mindmeister.com/images/download/22040693