Solar flares on April 18, 2007
The most powerful solar flare in 24 hours
There were no solar flares on the selected date
Solar activity index
Value as of the end of the day on April 18, 2007
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 17, 2007 to April 18, 2007
Time zone — UTC+01 (London) — summer time
List of solar flares for April 18, 2007
There were no solar flares on the selected date