Perth is set to experience its biggest aurora light show in years, which is tipped to be so impressive, some photographers have taken the day off in a bid to capture it.

Space nerds are preparing for a long night of watching the sky in the hope of witnessing the phenomenon which could be seen as far north as Joondalup for the first time in years.

What is causing tonight’s aurora

The aurora is a result of one of three coronal mass ejections (CME) — huge blasts of high-energy plasma from the sun — happening on Wednesday.

When these particles reach Earth they collide with oxygen and nitrogen in the atmosphere to create dramatic displays of coloured light.

The first two struck about 9am and 11am respectively but it is the third — and biggest — set to hit about 8pm, which has aurora chaser

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