Sun vs Reggio di Calabria

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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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Reggio di Calabria (UK: , US: , Italian: [ˈreddʒo di kaˈlaːbrja; ˈrɛddʒo -]; Reggino: Rìggiu; Bovesia Calabrian Greek: Righi; Ancient Greek: Ῥήγιον, romanized: Rhḗgion; Latin: Rhēgium), commonly known as Reggio Calabria (listen) or simply Reggio in Southern Italy, is the largest city and the most populated comune of Calabria. It is the capital of the Metropolitan City of Reggio Calabria and the seat of the Regional Council of Calabria. Reggio is located on the "toe" of the Italian Peninsula and is separated from the island of Sicily by the Strait of Messina. It is situated on the slopes of the Aspromonte, a long, craggy mountain range that runs up through the centre of the region. The third economic centre of mainland Southern Italy, the city proper has a population of more than 200,000 inhabitants spread over 236 square kilometres (91 sq mi), while the fast-growing urban area numbers 260,000 inhabitants. About 560,000 people live in the metropolitan area, recognised in 2015 by Italian Republic as a metropolitan city.As a major functional pole in the region, it has strong historical, cultural and economic ties with the city of Messina, which lies across the strait in Sicily, forming a metro city of less than 1 million people.Reggio is the oldest city in the region, and during ancient times, it was an important and flourishing colony of Magna Graecia.

Reggio has a modern urban system, set up after the catastrophic earthquake of 1908, which destroyed most of the city. The region has been subject to earthquakes.It is a major economic centre for regional services and transport on the southern shores of the Mediterranean. Reggio, with Naples and Taranto, is home to one of the most important archaeological museums, the prestigious National Archaeological Museum of Magna Græcia, dedicated to Ancient Greece (which houses the Bronzes of Riace, rare example of Greek bronze sculpture, which became one of the symbols of the city). Reggio is the seat, since 1907, of the Archeological Superintendence of Bruttium and Lucania. The city centre, consisting primarily of Liberty buildings, has a linear development along the coast with parallel streets, and the promenade is dotted with rare magnolias and exotic palms. Reggio has commonly used popular nicknames: The "city of Bronzes", after the Bronzes of Riace that are testimonials of its Greek origins; the "city of bergamot", which is exclusively cultivated in the region; and the "city of Fatamorgana", an optical phenomenon visible in Italy only from the Reggio seaside.

Source: Wikipedia