![]() This is the layer of the sun from which most of the light of the sun comes out. At this layer, the energy of the sun is released in the form of light. The thickness of the photosphere is 500 kilometres. It is flowing at a velocity of 7 km/second. Granules are cells of plasma that are 1000 km in diameter with hot rising plasma in the centre and the cooler plasma laying in the narrow spaces between them. It is composed of convection cells which are called granules. ![]() It is the deepest region of the luminous object. The term photosphere derived from the ancient Greek roots, photos means "light" and sphaira means "sphere" which refers to being a spherical surface. The lowest layer of the sun is the photosphere. So, the photosphere acts as their effective visible surface. In the universe, the stars have no gases but the gas beneath the photosphere is opaque. It is located under the chromosphere and the corona. The lowest visible layer of a star is the photosphere. The photosphere is the external layer of the Sun which is known as the luminous envelope or the visible layer of the sun from which light as well as heat radiate. Out of these, we talk about the main photosphere which is the outer layer of the earth. ![]() The inner layer of the sun is the core, radiative zone and convection zone while the photosphere, the chromosphere, the transition region and the corona are the outer layers of the sun. The atmosphere of the sun is composed of different layers and gases. This topic is very much essential in the fields of Astronomy, Geography, and Earth Science. We will learn what is the photosphere, its definition, its features and other related aspects as well. In this article, we will cover one of these layers i.e. Different ranges of temperature can be observed in these layers which have their own significance. It has a different structure consisting of Internal and external structure. Hydrogen and Helium are the two most elements of its composition. The Sun is considered as the centre of our solar system which also consists of planets, satellites, etc.
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