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Monitoring the Sun over a solar cycle with SOHO's EIT

Monitoring the Sun over a solar cycle with SOHO's EIT


Date: 20 September 2010
Satellite: SOHO
Depicts: The changing face of the Sun over one solar cycle
Copyright: ESA/NASA - SOHO/EIT

This image shows a sequence of snapshots of the Sun, taken each year over almost an entire, 11-year long solar cycle. The activity clearly peaks around the year 2001.

The images have been taken by SOHO's Extreme ultraviolet Imaging Telescope (EIT) at a wavelength of 284 Å, corresponding to the emission line of fourteen-times ionised iron atoms (Fe XV) and showing material at temperatures of about 2 million Kelvin.

Last Update: 1 September 2019
21-Apr-2021 13:35 UT

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https://sci.esa.int/s/W3e5RXA

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