Geomagnetic alert - Update
Grid Magnetic Angle calculator
Viewing the Northern Lights
Carrington Storm magnetograms
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Read our guide on how to see the Northern Lights from the UK.
The 'Carrington storm' Greenwich Observatory magnetograms will feature on BBC Stargazing - Back to Earth. You can see the complete storm or search our catalogue of over 250,000 other magnetograms.
When we predict an increase in magnetic activity we send out a geomagnetic disturbance alert.
Notice of a potential magnetic storm increases your chance of seeing the Northern Lights!
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The Geomagnetism team measures, records, models and interprets variations in the Earth’s natural magnetic fields.
Our data and expertise help to develop scientific understanding of change in the Earth and the environment, from deep within the core out into space.
We also provide geomagnetic products and services to industry and to academic colleagues and we use our knowledge for information and education.
Modelling the Earth's magnetic field, space weather hazards.
About our magnetic observatory operations, UK surveying, equipment.
Observatory data, indices, models, charts, applications.
Overviews of the Earth's magnetic field, reversals, magnetic poles.
Find out what the current global geomagnetic activity level is.