Vega | |
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Population | 0 |
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.
Abu Dhabi | |
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State | Abu Dhabi Emirate |
Country | United Arab Emirates |
Capital | |
Population | 921000 |
Abu Dhabi (UK:, US:; Arabic: أَبُو ظَبْيٍ Abū Ẓaby Arabic pronunciation: [ɐˈbuˈðˤɑbi]) is the capital and the second-most populous city of the United Arab Emirates (later Dubai). The city of Abu Dhabi is located on an island in the Persian Gulf, off the Central West Coast. The Majority of the city and the Emirate live on the mainland connected to the rest of the country. As of 2020, Abu Dhabi's urban area had an estimated population of 1.48 million, out of 2.9 million in the emirate of Abu Dhabi, as of 2016. Abu Dhabi homes local and national government offices and is the home of the United Arab Emirates Government and the Supreme Petroleum Council.