Kėdainiai vs Aurora

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Kėdainiai (Lithuanian: [kʲeːˈdâːɪnʲɛ] (listen)) is one of the oldest cities in Lithuania. It is located 51 km (32 mi) north of Kaunas on the banks of the Nevėžis River. First mentioned in the 1372 Livonian Chronicle of Hermann de Wartberge, its population as of 2020 is 23,667.

Its old town dates to the 17th century.The city is the administrative centre of the Kėdainiai District Municipality. The geographical centre of the Lithuanian Republic is in the nearby village of Ruoščiai, located in the eldership of Dotnuva.

Source: Wikipedia

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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