Aurora vs Luhansk

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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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Luhansk or Lugansk (UK: , US: ; Ukrainian: Луганськ, romanized: Luhans'k, IPA: [lʊˈɦɑnʲsʲk] (listen), UK: , US: ; Russian: Луганск, romanized: Lugansk, IPA: [lʊˈɡansk]), formerly known as Voroshilovgrad (1935–1958 and 1970–1990), is a city in eastern Ukraine, near the border with Russia in the disputed Donbass region. Luhansk is currently the capital and administrative center of the Luhansk People's Republic (LPR), an unrecognized breakaway state that was established in 2014 by pro-Russian separatists.

The city and its surrounding areas have been one of the main sites of fighting in the Donbass War. Until its capture by the LPR, Luhansk was the administrative center of Luhansk Oblast. The current population is estimated to be 401,297 (2020 est.)

Source: Wikipedia