Sun vs Troy

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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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Troy (Ancient Greek: Τροία, Troía, Ἴλιον, Ílion or Ἴλιος, Ílios; Latin: Troia and Ilium; Hittite: ???? Wilusa or ???? Truwisa; Turkish: Truva or Troya) was a city in the northwest of Asia Minor (modern Turkey), southwest of the Çanakkale Strait, south of the mouth of the Dardanelles and northwest of Mount Ida. The location in the present day is the hill of Hisarlik and its immediate vicinity. In modern scholarly nomenclature, the Ridge of Troy (including Hisarlik) borders the Plain of Troy, flat agricultural land, which conducts the lower Scamander River to the strait. Troy was the setting of the Trojan War described in the Greek Epic Cycle, in particular in the Iliad, one of the two epic poems attributed to Homer. Metrical evidence from the Iliad and the Odyssey suggests that the name Ἴλιον (Ilion) formerly began with a digamma: Ϝίλιον (Wilion); this is also supported by the Hittite name for what is thought to be the same city, Wilusa. According to archaeologist Manfred Korfmann, Troy's location near the Aegean Sea, as well as the Sea of Marmara and the Black Sea, made it a hub for military activities and trade, and the chief site of a culture that Korfmann calls the "Maritime Troja Culture", which extended over the region between these seas.The city was destroyed at the end of the Bronze Age – a phase that is generally believed to represent the end of the Trojan War – and was abandoned or near-abandoned during the subsequent Dark Age. After this, the site acquired a new, Greek-speaking population, and the city became, along with the rest of Anatolia, a part of the Persian Empire. The Troad was then conquered by Alexander the Great, an admirer of Achilles, who he believed had the same type of glorious (but short-lived) destiny. After the Roman conquest of this now Hellenistic Greek-speaking world, a new capital called Ilium (from Greek: Ἴλιον, Ilion) was founded on the site in the reign of the Roman Emperor Augustus. It flourished until the establishment of Constantinople, became a bishopric, was abandoned, repopulated for a few centuries in the Byzantine era, before being abandoned again (although it has remained a titular see of the Catholic Church).

Troy's physical location, on Hisarlik, was forgotten in antiquity and, by the early modern era, even its existence as a Bronze Age city was questioned and held to be mythical or quasi-mythical. The Scottish journalist Charles Maclaren, in 1822, was the first modern scholar to categorically identify Hisarlik as the likely location of Troy. During the mid-19th century the Calvert family, wealthy Levantine English settlers of the Troad, occupying a working farm a few miles from Hisarlik, purchased much of the hill in the belief that it contained the ruins of Troy. They were antiquarians. Two of the family, Frederick and especially the youngest, Frank, surveyed the Troad and conducted a number of trial excavations there. In 1865, Frank Calvert excavated trial trenches on the hill, discovering the Roman settlement. Realizing he did not have the funds for a full excavation, he attempted to recruit the British Museum, and was refused. A chance meeting with Calvert in Çanakkale and a visit to the site by Heinrich Schliemann, a wealthy German businessman and archaeologist, also looking for Troy, offered a second opportunity for funding. Schliemann had been at first skeptical about the identification of Hisarlik with Troy, but was persuaded by Calvert. As Schliemann was about to leave the area, Calvert wrote to him asking him to take over the entire excavation. Schliemann agreed. The Calverts, who made their money in the diplomatic service, expedited the acquisition of a Turkish firman. In 1868, Schliemann excavated an initial deep trench across the mound called today "Schliemann's trench." These excavations revealed several cities built in succession. Subsequent excavations by following archaeologists elaborated on the number and dates of the cities. Since the rediscovery of Troy, a village near the ruins named Tevfikiye has supported the archaeological site and the associated tourist trade. It is in the modern Çanakkale Province, 30 kilometres (19 mi) south-west of the city of Çanakkale. On modern maps, Ilium is shown a short distance inland from the Scamander estuary, across the Plain of Troy. Troy was added to the UNESCO World Heritage list in 1998.

Source: Wikipedia