The active zone of the Sun returns to face the Earth: northern lights in the coming days?

The active zone of the Sun returns to face the Earth: northern lights in the coming days?
The active zone of the Sun returns to face the Earth: northern lights in the coming days?

She returns ! Three weeks ago, a major solar flare was observed towards Earth. The phenomenon, the most powerful in at least 20 years, resulted in spectacular northern lights visible from the south of France. But the party may not be over. “ That’s it, the Sun has rotated quite a bit and the active zone which caused the auroras of May 10 is soon back. And she is clearly still very active!!!», Indicates Éric Lagadec, astrophysicist at the Côte d’Azur Observatory, on X.

The active zone AR 3664 which had been responsible for the largest aurora in decades has circled the Sun and reappeared on the solar limbalso observes @Astropierre, scientific mediator, on the same social network. It is still active and will face Earth at the end of the week… »

The Alps Operational Space Meteorology Center (COMEA) specified on Monday that “task (from active area) is on the solar limb, so it will be facing us in 7 days. It will start to be truly geoeffective (plasma directed towards Earth in case of ejection) within 3-4 days and until June 6-7.”

“Impossible to predict”

This Wednesday morning, in a new message, COMEA indicates that the size of this solar spot “has decreased significantly over the last two weeks but its magnetic configuration remains complex. More X-ray flashes are expected in the coming days, and ejections are still likely.”

Will we really be able to observe new Northern Lights soon? “ It’s impossible to predict », replies @Astropierre on

The appearance of auroras, their power and their observation area depends on many factors. If the active zone of the Sun will be facing the Earth in a few days, nothing says that a powerful flare will occur at that time. Another important and rather poorly started criterion: the weather… To date, the weekend promises to be humid, cloudy, even stormy in the Nord and Pas-de-Calais.

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