Hobart vs Aurora

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Hobart ( (listen), Palawa kani: Nipaluna) is the capital and most populous city of the Australian island state of Tasmania. Home to almost half of all Tasmanians, it is the least populated Australian state capital city, and second smallest if territories are taken into account, after Darwin, Northern Territory. Hobart is located in Tasmania's south-east on the estuary of the River Derwent, making it the most southern of Australia's capital cities. Its skyline is dominated by the 1,271-metre (4,170 ft) Mount Wellington, and its harbour forms the second-deepest natural port in the world, with much of the city's waterfront consisting of reclaimed land. The metropolitan area is often referred to as Greater Hobart, to differentiate it from the City of Hobart, one of the five local government areas that cover the city.Founded in 1804 as a British penal colony, Hobart is Australia's second oldest capital city after Sydney, New South Wales. Prior to British settlement, the Hobart area had been occupied for possibly as long as 35,000 years by the semi-nomadic Mouheneener tribe, a sub-group of the Nuennone, or South-East tribe.

Whaling quickly emerged as a major industry in the area, and for a time Hobart served as the Southern Ocean's main whaling port. Penal transportation ended in the 1850s, after which the city experienced periods of growth and decline. The early 20th century saw an economic boom on the back of mining, agriculture and other primary industries, and the loss of men who served in the world wars was counteracted by an influx of immigration. Despite the rise in migration from Asia and other non-English speaking regions, Hobart's population remains predominantly ethnically Anglo-Celtic, and has the highest percentage of Australian-born residents among Australia's capital cities.Today, Hobart is the financial and administrative hub of Tasmania, serving as the home port for both Australian and French Antarctic operations and acting as a tourist destination, with over 1.192 million visitors in 2011–12. Well-known drawcards include its convict-era architecture, Salamanca Market and the Museum of Old and New Art (MONA), the Southern Hemisphere's largest private museum.

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