Sun vs Governador Valadares

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The Sun is the star at the center of the Solar System. It is a nearly perfect sphere of hot plasma, heated to incandescence by nuclear fusion reactions in its core, radiating the energy mainly as light and infrared radiation. It is by far the most important source of energy for life on Earth. Its diameter is about 1.39 million kilometres (864,000 miles), or 109 times that of Earth, and its mass is about 330,000 times that of Earth. It accounts for about 99.86% of the total mass of the Solar System. Roughly three quarters of the Sun's mass consists of hydrogen (~73%); the rest is mostly helium (~25%), with much smaller quantities of heavier elements, including oxygen, carbon, neon, and iron.The Sun is a G-type main-sequence star (G2V) based on its spectral class. As such, it is informally and not completely accurately referred to as a yellow dwarf (its light is closer to white than yellow). It formed approximately 4.6 billion years ago from the gravitational collapse of matter within a region of a large molecular cloud. Most of this matter gathered in the center, whereas the rest flattened into an orbiting disk that became the Solar System. The central mass became so hot and dense that it eventually initiated nuclear fusion in its core. It is thought that almost all stars form by this process.

In its core the Sun currently fuses about 600 million tons of hydrogen into helium every second, converting 4 million tons of matter into energy every second as a result. This energy, which can take between 10,000 and 170,000 years to escape the core, is the source of the Sun's light and heat. When hydrogen fusion in its core has diminished to the point at which the Sun is no longer in hydrostatic equilibrium, its core will undergo a marked increase in density and temperature while its outer layers expand, eventually transforming the Sun into a red giant. It is calculated that the Sun will become sufficiently large to engulf the current orbits of Mercury and Venus, and render Earth uninhabitable – but not for about five billion years. After this, it will shed its outer layers and become a dense type of cooling star known as a white dwarf, and no longer produce energy by fusion, but still glow and give off heat from its previous fusion. The enormous effect of the Sun on Earth has been recognized since prehistoric times. The Sun has been regarded by some cultures as a deity. The synodic rotation of Earth and its orbit around the Sun are the basis of solar calendars, one of which is the predominant calendar in use today.

Source: Wikipedia

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Governador Valadares is a Brazilian municipality in the countryside of Minas Gerais. In 2018, its population was 278,685 inhabitants, thus being the ninth most populated city in the state. It is an economical axis of the middle valley of the Doce River (Rio Doce, lit. "Sweet river"), having a significant influence on the east and northeast portion of Minas Gerais and local authorities of the state of Espírito Santo. Governador Valadares sits on the bank of the Doce River (Rio Doce), 324 km from Belo Horizonte. Governador Valadares has an area of about 2 342 km², being only 58 km² of urban area. The discovery of the city started at the beginning of the XVI century, that explored the Doce River searching for precious metals. The settlement began between the XVIII and XIX centuries, constructing barracks destined to keep an eye at the Amerindians, who used to attack the settlers and merchants.

With the construction of the EFVM (Vitória-Minas Railway), in 1907, the settlements were consolidated. The growth of the population and commercial development was improved due to the location of the city, that was near to coffee farms and wood extraction fields. The municipality was emancipated from Peçanha in the 1930s. After the 40s, the extraction of precious metals brought a notable population growth, along with livestock and commerce. But with the decline of natural resources, the money could only be earned through the investment of immigrants, who would later go to other countries. Commerce is the most important source of income in the city, along with agribusiness and regional manufactured products.

Source: Wikipedia