Aurora | |
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State | Missouri |
Country | United States |
Capital | |
Population | 7377 |
Postcode | 65605 |
An aurora (plural: auroras or aurorae), sometimes referred to as polar lights (aurora polaris), northern lights (aurora borealis), or southern lights (aurora australis), is a natural light display in the Earth's sky, predominantly seen in high-latitude regions (around the Arctic and Antarctic).
Auroras are the result of disturbances in the magnetosphere caused by solar wind. These disturbances are sometimes strong enough to alter the trajectories of charged particles in both solar wind and magnetospheric plasma. These particles, mainly electrons and protons, precipitate into the upper atmosphere (thermosphere/exosphere).
Dnipro | |
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State | Dnipropetrovsk Oblast |
Country | Ukraine |
Capital | |
Population | 1080486 |
Dnipro (Ukrainian: Дніпро [d⁽ʲ⁾n⁽ʲ⁾iˈprɔ] (listen); Russian: Днепр, romanized: Dnepr [dʲnʲepr]), previously called Dnipropetrovsk (Ukrainian: Дніпропетро́вськ [ˌd⁽ʲ⁾n⁽ʲ⁾ipropeˈtrɔu̯sʲk]; Russian: Днепропетро́вск, romanized: Dnepropetrovsk [dʲnʲɪprəpʲɪˈtrofsk]) from 1926 until May 2016, is Ukraine's fourth-largest city, with about one million inhabitants. It is located in the central-eastern part of Ukraine, 391 kilometres (243 mi) southeast of the Ukrainian capital Kyiv on the Dnieper River, after which it is named. Dnipro is the administrative centre of the Dnipropetrovsk Oblast. Administratively, it is incorporated as a city of oblast significance, the centre of Dnipro municipality and extraterritorial administrative centre of Dnipro Raion. It has a population of 990,724 (2020 est.).
Archeological findings suggest that the first fortified town in the territory of present-day Dnipro probably dates to the mid-16th century. Other findings suggest that the town Samar, now a neighborhood in Dnipro's Samarskyi District, existed in the 1520s.Known as Ekaterinoslav (Russian: Екатериносла́в, romanized: Yekaterinoslav [jɪkətʲɪrʲɪnɐˈsɫaf]; Ukrainian: Катериносла́в, romanized: Katerynoslav [kɐtɛrɪnoˈslɑu̯]) until 1925, the city was formally inaugurated by the Russian Empress Catherine the Great (Russian: Екатерина, romanized: Ekaterina - hence its then name) in 1787 as the administrative centre of the newly-acquired vast territories of imperial New Russia, including those ceded to Russia by the Ottoman Empire under the Treaty of Küçük Kaynarca (1774).
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