Raleigh vs Sun

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Raleigh (; RAH-lee) is the capital of the state of North Carolina and the seat of Wake County in the United States. Raleigh is the second-largest city in the state, after Charlotte. Raleigh is known as the "City of Oaks" for its many oak trees, which line the streets in the heart of the city. The city covers a land area of 142.8 square miles (370 km2). The U.S. Census Bureau estimated the city's population as 474,069 as of July 1, 2019. It is one of the fastest-growing cities in the country. The city of Raleigh is named after Walter Raleigh, who established the lost Roanoke Colony in present-day Dare County. Raleigh is home to North Carolina State University (NCSU) and is part of Research Triangle Park (RTP), together with Durham (home of Duke University and North Carolina Central University) and Chapel Hill (home of the University of North Carolina at Chapel Hill). The "Triangle" nickname originated after the 1959 creation of the Research Triangle Park, located in Durham and Wake counties, among the three cities and their universities. The Research Triangle region encompasses the U.S. Census Bureau's Raleigh-Durham-Chapel Hill Combined Statistical Area (CSA), which had an estimated population of 2,037,430 in 2013. The Raleigh metropolitan statistical area had an estimated population of 1,214,516 in 2013.

Most of Raleigh is located within Wake County, with a very small portion extending into Durham County. The towns of Cary, Morrisville, Garner, Clayton, Wake Forest, Apex, Holly Springs, Fuquay-Varina, Knightdale, Wendell, Zebulon, and Rolesville are some of Raleigh's primary nearby suburbs and satellite towns. Raleigh is an early example in the United States of a planned city. Following the American Revolutionary War when the US gained independence, this was chosen as the site of the state capital in 1788 and incorporated in 1792 as such. The city was originally laid out in a grid pattern with the North Carolina State Capitol in Union Square at the center. During the American Civil War, the city was spared from any significant battle. It fell to the Union in the closing days of the war, and struggled with the economic hardships in the postwar period related to the reconstitution of labor markets, over-reliance on agriculture, and the social unrest of the Reconstruction Era. Following the establishment of the Research Triangle Park (RTP) in 1959, several tens of thousands of jobs were created in the fields of science and technology, and it became one of the fastest-growing communities in the United States by the early 21st century.

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