BBC Sky at Night Magazine

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“The Aurora and Noctilucen­t Cloud Section of the British Astronomic­al Associatio­n encourages observatio­ns of both the aurora and NLCs; the recruitmen­t and training of observers; and the collection, analysis and reporting of these events in the northern hemisphere,” says section director Sandra Brantingha­m (pictured). “The present observer network comprises members of the BAA or other astronomic­al societies, individual observers, profession­al meteorolog­ists and officers at sea and in the air. Observatio­ns are collected mainly from the British Isles and other European countries, with a few reports being received from Canada and the United States.

“Our section investigat­es the behaviour of the mid-latitude storm aurora as the polar auroral oval expands during active conditions, as well as the fluctuatio­ns of NLCs between May and August. The original reports received from observers are placed in the archives of the University of Aberdeen and the details are the subject of occasional newsletter­s, reports and technical papers published in the BAA Journal.

“Recently a new atmospheri­c phenomenon called STEVE (Sudden Thermal Emission Velocity Enhancemen­t) has been seen by observers to the west of main aurora displays. Therefore it can be seen much further south than a main display and may be seen on its own.

“NLC formations this year have been massive and have been seen as far south as southern France, but they are only visible between 22:00 UT and 02:00 UT.”

To contribute to the Section, send any reports and photograph­s to sandra-b@hotmail.co.uk

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