I took the picture handheld with my Nikon D7000 DSLR & a 200mm zoom lens.
I put a regular polariser filter on the front of the lens. The I took a pair of shonky IMAX 3D glasses, which have polarised plastic filters in them, & rotated the glasses to cross the polarisers & dim the Sun down enough to avoid saturation.
The exposure time then 1/6400sec at f/10, ISO100, so perfectly good for handheld.
There's some thin cloud & the IMAX plastic lenses are rubbish, so the image isn't super-sharp.
And for the photography geeks, this MacGyver cross-polariser set-up makes the Sun look very blue, so when the DSLR RAW image is demosaiced, things aren't great.
So I switched the image to b/w mode in LightRoom to combine the channels differently, then colourised back to this yellow tint.
Some denoising then helped with the demosaicing issues.
To be clear, the forecast severe geomagnetic storm (the first G4 warning since 2005!) doesn't only mean that the aurorae will be seen far south in Europe, but also in North America.
And similarly far from the South Pole as well.
So you should keep an eye on space weather / aurora watch websites & apps for tonight (in Europe & NA), starting perhaps with these:
Here's the G4 storm alert which could lead to some spectacular auroral activity tonight much further from the poles than usual, plus a webpage from Aurora Watch UK with links to social media accounts & mobile apps that'll warn you if it's all about to go off.
Make sure you can quickly get to a dark location with a clear horizon – aurorae are very fickle at best & come & go in minutes, although this could be a doozy.
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