Aurora vs Chernivtsi

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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).

The resulting ionization and excitation of atmospheric constituents emit light of varying color and complexity. The form of the aurora, occurring within bands around both polar regions, is also dependent on the amount of acceleration imparted to the precipitating particles. Precipitating protons generally produce optical emissions as incident hydrogen atoms after gaining electrons from the atmosphere. Proton auroras are usually observed at lower latitudes.

Source: Wikipedia

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Chernivtsi (Ukrainian: Чернівці́, romanized: Černivci [tʃern⁽ʲ⁾iu̯ˈts⁽ʲ⁾i] Polish: Czerniowce, Romanian: Cernăuți; see also other names) is a city in western Ukraine. It is situated on the upper course of the River Prut, and is the administrative center of Chernivtsi Oblast (province) – the northern, Ukrainian part of the historical region of Bukovina. Administratively, Chernivtsi is a city of regional significance. At the time of the 2001 Ukrainian Census, the population of the city was 240,600.

Current population: 267,060 (2020 est.)Chernivtsi is currently viewed as one of Western Ukraine's main cultural centers. The city is also considered one of Ukraine's important educational and architectural sites. Historically a cosmopolitan community, Chernivtsi was once dubbed "Little Vienna" and "Jerusalem upon the Prut". Chernivtsi is currently twinned with seven other cities around the world. The city is a major regional rail and road transportation hub, also housing an international airport.

Source: Wikipedia