Solar flares on April 28, 2004
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 28, 2004
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 27, 2004 to April 28, 2004
Time zone — UTC-08 (Anchorage) — summer time
List of solar flares for April 28, 2004
There were no solar flares on the selected date