Havana vs Vega

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Havana (; Spanish: La Habana [la aˈβana] (listen)) is the capital city, largest city, province, major port, and leading commercial center of Cuba. The city has a population of 2.1 million inhabitants, and it spans a total of 781.58 km2 (301.77 sq mi) – making it the largest city by area, the most populous city, and the fourth largest metropolitan area in the Caribbean region.The city of Havana was founded by the Spanish in the 16th century and due to its strategic location it served as a springboard for the Spanish conquest of the Americas, becoming a stopping point for treasure-laden Spanish galleons returning to Spain. The King Philip II of Spain granted Havana the title of capital in 1592. Walls as well as forts were built to protect the old city. The sinking of the U.S. battleship Maine in Havana's harbor in 1898 was the immediate cause of the Spanish–American War.The city is the center of the Cuban government, and home to various ministries, headquarters of businesses and over 100 diplomatic offices.

The governor is Reinaldo García Zapata of the Communist Party of Cuba (PCC). In 2009, the city/province had the third highest income in the country.Contemporary Havana can essentially be described as three cities in one: Old Havana, Vedado and the newer suburban districts. The city extends mostly westward and southward from the bay, which is entered through a narrow inlet and which divides into three main harbors: Mari melena, Guanabacoa and Antares. The sluggish Almendares River traverses the city from south to north, entering the Straits of Florida a few miles west of the bay.The city attracts over a million tourists annually; the Official Census for Havana reports that in 2010 the city was visited by 1,176,627 international tourists, a 20% increase from 2005. Old Havana was declared a UNESCO World Heritage Site in 1982. The city is also noted for its history, culture, architecture and monuments. As typical of Cuba, Havana experiences a tropical climate.

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