The colourful aurora australis could be visible from southern regions of Australia on Friday night following a coronal mass ejection (CME) from the sun. These rare events occur when the sun ejects streams of charged particles and magnetic fields into space.
When a CME reaches Earth, it can trigger a geomagnetic storm. This interaction with Earth's magnetic field often produces vivid auroral displays, painting the night sky with shades of green, purple, and red — especially at higher latitudes near the poles.
“A coronal mass ejection is expected to impact the Earth within the next 48 hours, possibly resulting in significant geomagnetic activity and visible auroras during local nighttime hours.”
Two separate CMEs were detected on November 5, prompting the Bureau of Meteorology’s Space Weather Service to issue an aurora watch the following day. Photographers across New South Wales, Tasmania, and Victoria may have a chance to capture the phenomenon, weather and moonlight conditions permitting.
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Author’s summary: Strong solar activity may soon deliver a dazzling aurora australis display across southern Australia, depending on clouds and moonlight.