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Third place in the 2021 IAU OAE Astrophotography Contest, category Aurorae (time-lapses). This is a strange atmospheric phenomenon known as Steve. This is similar to an aurora as it is caused by charged particles interacting with the Earth's magnetic field. However unlike aurorae, the particles which cause Steve are generated high in the Earth's atmosphere rather than coming from the Sun. Note the banded "picket fence" appearance. This is caused by waves of these particles in the upper atmosphere. The name Steve was chosen by the first group to describe this phenomenon as a familiar name for something unknown. Sheila Wiwchar/IAU OAE
Aurorae, Astrophotography
Aurorae, Astrophotography
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