Tarnów vs Aurora

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Tarnów (Polish pronunciation: [ˈtarnuf] (listen)) is a city in southeastern Poland with 108,470 inhabitants and a metropolitan area population of 269,000 inhabitants. The city is situated in the Lesser Poland Voivodeship since 1999. From 1975 to 1998, it was the capital of the Tarnów Voivodeship. It is a major rail junction, located on the strategic east–west connection from Lviv to Kraków, and two additional lines, one of which links the city with the Slovak border.

Tarnów is known for its traditional Polish architecture, which was strongly influenced by foreign cultures and foreigners that once lived in the area, most notably Jews, Germans and Austrians. The entire Old Town, featuring 16th century tenements, houses and defensive walls, has been fully preserved. Tarnów is also the warmest city of Poland, with the highest long-term mean annual temperature in the whole country.

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