Birobidzhan vs Aurora

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Birobidzhan (Russian: Биробиджа́н, IPA: [bʲɪrəbʲɪˈdʐan]; Yiddish: ביראָבידזשאַן‎, Birobidzshan) is a town and the administrative center of the Jewish Autonomous Oblast, Russia, located on the Trans-Siberian Railway, near the China-Russia border. As of the 2010 Census, its population is 75,413, and its official language is Yiddish.

Birobidzhan is named after the two largest rivers in the autonomous oblast: the Bira and the Bidzhan. The Bira, which lies to the east of the Bidzhan Valley, flows through the town. Both rivers are tributaries of the Amur.

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