Luxembourg vs Vega

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Luxembourg (Luxembourgish: Lëtzebuerg, French: Luxembourg, German: Luxemburg), also known as Luxembourg City (Luxembourgish: Stad Lëtzebuerg or d'Stad, French: Ville de Luxembourg, German: Stadt Luxemburg, Luxemburg-Stadt), is the capital city of the Grand Duchy of Luxembourg and the country's most populous commune.

Standing at the confluence of the Alzette and Pétrusse rivers in southern Luxembourg, the city lies in the center of Western Europe, located 213 km (132 mi) by road from Brussels, 372 kilometers (231 mi) from Paris, and 209 km (130 mi) from Cologne. The town comprises Luxembourg Castle, established by the Franks in the Early Middle Ages, around which a settlement developed. As of 31 December 2019, Luxembourg City has a population of 122,273 inhabitants, which is more than three times the population of the country's second most populous commune (Esch-sur-Alzette). The city's population includes 160 nationalities.



Foreigners represent 70% of the city's population, while Luxembourgers represent 30 percent of the population, and the amount of foreign-born residents in town rises steadily each year.In 2011, Luxembourg was rated as having the second-highest per capita GDP in the world at $80,119 (PPP), with the city having grown into a banking and administrative center. In the 2011 Mercer worldwide survey of 221 cities, Luxembourg was set first for personal security, while it was ranked 19th for quality of living.Luxembourg is one of the de facto capitals of the European Union (alongside Brussels, Frankfurt, and Strasbourg), as it is the seat of several institutions, agencies, and bodies of the European Union, such as the Court of Justice of the European Union, the European Court of Auditors, the Secretariat of the European Parliament, the European Investment Bank, the European Investment Fund, the European Stability Mechanism, and Eurostat.

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