Aurora vs Perpignan

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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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Perpignan (, US: , French: [pɛʁpiɲɑ̃] (listen); Catalan: Perpinyà [pəɾpiˈɲa]; Occitan: Perpinhan) is the prefecture of the Pyrénées-Orientales department in Southwest France, nestled in the heart of the plain of Roussillon, at the foot of the Pyrenees a few kilometres from the Mediterranean Sea and the scrublands of the Corbières massif. It is the centre of the metropolitan area Perpignan Mediterranée Métropole. In 2016 Perpignan had 121,875 inhabitants (Perpignanais(e) in French, Perpinyanés(a) in Catalan) in the commune proper, and the metropolitan area had a total population of 268,577 making it the last major French city before Spain. Perpignan was the capital of the former province and County of Roussillon (Rosselló in Catalan) and continental capital of the Kingdom of Majorca in the 13th and 14th centuries.

It has preserved an extensive old center which aligns its coloured houses in a series of picturesque streets and alleys stretching between the banks of the Têt and its tributary the Basse. Its heritage earned it the title of "City of Art and History". A important economic centre and university town for centuries, the capital of the French part of Catalonia is still an eventfull and touristic city with its bodegas in the historic centre. The city is also known for its International Photojournalism Festival, its medieval Trobades and its centuries-old garnet industry.

Source: Wikipedia