Vega vs Turku

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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

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Turku ( TOOR-koo; Finnish: [ˈturku] (listen); Swedish: Åbo [ˈǒːbʊ] (listen), Finland Swedish: [ˈoːbu] (listen); Latin: Aboa; Russian: Турку, formerly Або) is a city and former capital on the southwest coast of Finland at the mouth of the Aura River, in the region of Finland Proper (Varsinais-Suomi) and the former Turku and Pori Province (Turun ja Porin lääni; 1634–1997). The region was originally called Suomi (Finland), which later became the name for the whole country. As of 30 September 2018, the population of Turku was 191,499 making it the sixth largest city in Finland after Helsinki, Espoo, Tampere, Vantaa and Oulu. There were 330,192 inhabitants living in the Turku sub-region, ranking it as the third largest urban area in Finland after the Greater Helsinki area and Tampere sub-region. The city is officially bilingual as 5.2 percent of its population identify Swedish as a mother-tongue.It is unknown when Turku gained city rights. The Pope first mentioned the town Aboa in his Bulla in 1229 and the year is now used as the foundation year of Turku. Turku is the oldest city in Finland, and served as the most important city of the eastern part of the Kingdom of Sweden (modern-day Finland). After the Finnish war, Finland became an autonomous grand duchy of the Russian Empire in 1809. Turku lost its status as capital of the Grand Duchy in 1812, when Tsar Alexander I of Russia decided to move the capital to Helsinki.

It was only after the last great fire in 1827 that most governmental institutions were moved to Helsinki along with the Royal Academy of Turku (Turun Akatemia) founded in 1640, which then became the University of Helsinki. Turku continued to be the most populous city in Finland until the end of the 1840s, and it remains the regional capital and an important business and cultural center and port. Because of its long history, it has been the site of many important events, and has extensively influenced Finnish history. The history of the country is closely linked to Turku, the former capital. Along with Tallinn, the capital city of Estonia, Turku was designated the European Capital of Culture for 2011. In 1996, it was declared the official Christmas City of Finland. Also, Turku has been officially declared the "Food Capital of Finland", because it holds a number of Finland's oldest and high-qualited restaurants, including the country's top-rated Indian restaurant Delhi Darbar, and a historically famous fish market held twice a year.Due to its location, Turku is a notable commercial and passenger seaport with over three million passengers traveling through the Port of Turku each year to Stockholm and Mariehamn.

Source: Wikipedia