Bangui vs Vega

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Bangui (French pronunciation: ​[bɑ̃ɡi]) (or Bangî in Sango, formerly written Bangi in English) is the capital and largest city of the Central African Republic. As of 2012 it had an estimated population of 734,350. It was recognized as a French outpost in 1889 and named after its location on the northern bank of the Ubangi River (French: Oubangui); the Ubangi itself was appointed from the Bobangi word for the"rapids" situated beside the settlement, which marked the end of navigable water north from Brazzaville. The majority of the population of the Central African Republic lives in the western parts of the country, in Bangui and the surrounding region. The city creates an autonomous commune (commune autonome) of the Central African Republic that's surrounded by the Ombella-M'Poko prefecture. Having an area of 67 square kilometres (26 sq mi), the commune is the smallest high-level administrative division in the nation, but the highest in terms of population.

The city consists of eight urban districts (arrondissements), 16 groups (groupements) and 205 neighbourhoods (quartiers). As the capital of the Central African Republic, Bangui acts as an administrative, trade, and industrial centre. It is served with the Bangui M'Poko International Airport. The National Assembly, government buildings, banks, foreign enterprises and embassies, hospitals, hotels, main markets and the Ngaragba Central Prison are located here. Bangui manufactures textiles, food products, beer, shoes and soap. Its Notre-Dame Cathedral is the seat of the Roman Catholic Archdiocese of Bangui. The city is also home to the University of Bangui, inaugurated in 1970. Bangui has been the scene of intense rebel activity and destruction during decades of political upheaval, including the recent rebellion. As a result of political unrest, the city was named in 1996 as one of the most dangerous on earth.

Source: Wikipedia

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Vega is the brightest star in the northern constellation of Lyra. It has the Bayer designation α Lyrae, which is Latinised to Alpha Lyrae and abbreviated Alpha Lyr or α Lyr. This star is relatively close at only 25 light-years from the Sun, and, together with Arcturus and Sirius, one of the most luminous stars in the Sun's neighborhood. It is the fifth-brightest star in the night sky, and the second-brightest star in the northern celestial hemisphere, after Arcturus. Vega has been extensively studied by astronomers, leading it to be termed "arguably the next most important star in the sky after the Sun". Vega was the northern pole star around 12,000 BC and will be so again around the year 13,727, when its declination will be +86° 14′. Vega was the first star other than the Sun to be photographed and the first to have its spectrum recorded. It was one of the first stars whose distance was estimated through parallax measurements. Vega has functioned as the baseline for calibrating the photometric brightness scale and was one of the stars used to define the zero point for the UBV photometric system.

Vega is only about a tenth of the age of the Sun, but since it is 2.1 times as massive, its expected lifetime is also one tenth of that of the Sun; both stars are at present approaching the midpoint of their life expectancies. Vega has an unusually low abundance of the elements with a higher atomic number than that of helium. Vega is also a variable star that varies slightly in brightness. It is rotating rapidly with a velocity of 236 km/s at the equator. This causes the equator to bulge outward due to centrifugal effects, and, as a result, there is a variation of temperature across the star's photosphere that reaches a maximum at the poles. From Earth, Vega is observed from the direction of one of these poles.Based on an observed excess emission of infrared radiation, Vega appears to have a circumstellar disk of dust. This dust is likely to be the result of collisions between objects in an orbiting debris disk, which is analogous to the Kuiper belt in the Solar System. Stars that display an infrared excess due to dust emission are termed Vega-like stars.

Source: Wikipedia