Lima vs Sun

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Lima ( LEE-mə; Spanish pronunciation: [ˈlima]) is the capital and the largest city of Peru. It is located in the valleys of the Chillón, Rímac and Lurín Rivers, in the central coastal part of the country, overlooking the Pacific Ocean. Together with the seaport of Callao, it forms a contiguous urban area known as the Lima Metropolitan Area. With a population of more than 9 million, Lima is the second largest city in the Americas, after São Paulo. Lima was named by natives in the agricultural region known by native Peruvians as Limaq. It became the capital and most important city in the Viceroyalty of Peru. Following the Peruvian War of Independence, it became the capital of the Republic of Peru (República del Perú). Around one-third of the national population lives in the metropolitan area. Lima is home to one of the oldest institutions of higher learning in the New World. The National University of San Marcos, founded on 12 May 1551, during the Viceroyalty of Peru, is the first officially established and the oldest continuously functioning university in the Americas.

Nowadays the city is considered to be the political, cultural, financial and commercial center of the country. Internationally, it is one of the thirty most populated urban agglomerations in the world. Due to its geostrategic importance, it has been defined as a "beta" city. Jurisdictionally, the metropolis extends mainly within the province of Lima and in a smaller portion, to the west, within the constitutional province of Callao, where the seaport and the Jorge Chávez airport are located. Both provinces have regional autonomy since 2002. In October 2013, Lima was chosen to host the 2019 Pan American Games; these games were held at venues in and around Lima, and were the largest sporting event ever hosted by the country. It also hosted the APEC Meetings of 2008 and 2016, the Annual Meetings of the International Monetary Fund and the World Bank Group in October 2015, the United Nations Climate Change Conference in December 2014, and the Miss Universe 1982 contest.

Source: Wikipedia

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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