Xinjiang vs Vega

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Xinjiang (Uyghur: شىنجاڭ‎‎, SASM/GNC: Xinjang; Chinese: 新疆; pinyin: Xīnjiāng; alternately romanized as Sinkiang), officially Xinjiang Uyghur Autonomous Region (XUAR), is an autonomous region of the People's Republic of China (PRC), located in the northwest of the country close to Central Asia. Being the largest province-level division of China and the 8th-largest country subdivision in the world, Xinjiang spans over 1.6 million km2 (640,000 square miles), and has about 25 million inhabitants.Xinjiang borders the countries of Mongolia, Russia, Kazakhstan, Kyrgyzstan, Tajikistan, Afghanistan, Pakistan and India. The rugged Karakoram, Kunlun and Tian Shan mountain ranges occupy much of Xinjiang's borders, as well as its western and southern regions. The Aksai Chin region, administered by China mostly as part of Xinjiang's Hotan Prefecture, is claimed by India. Xinjiang also borders the Tibet Autonomous Region and the provinces of Gansu and Qinghai. The most well-known route of the historical Silk Road ran through the territory from the east to its northwestern border. It is home to a number of ethnic groups, including the Turkic Uyghur, Kazakhs and Kyrgyz, the Han, Tibetans, Hui, Tajiks, Mongols, Russians and Xibe. More than a dozen autonomous prefectures and counties for minorities are in Xinjiang.

Xinjiang is also referred to as Chinese Turkestan, East Turkestan and East Turkistan. Xinjiang is divided into the Dzungarian Basin in the north and the Tarim Basin in the south by a mountain range. Only about 9.7% of Xinjiang's land area is fit for human habitation.With a documented history of at least 2,500 years, a succession of people and empires have vied for control over all or parts of this territory. The territory came under the rule of the Qing dynasty in the 18th century, later replaced by the Republic of China government. Since 1949, it has been part of the People's Republic of China following the Chinese Civil War. In 1954, Xinjiang Bingtuan was set up to strengthen the border defense against the Soviet Union and also promote the local economy. In 1955, Xinjiang was administratively changed from a province into an autonomous region. In recent decades, abundant oil and mineral reserves have been found in Xinjiang and it is currently China's largest natural gas-producing region. In the 1990s and 2000s, the East Turkestan independence movement, separatist conflict and the influence of radical Islam have resulted in unrest in the region with occasional terrorist attacks and clashes between separatist and government forces.

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