Solar flares on September 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 September 28, 2004
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 27, 2004 to September 28, 2004
Time zone — UTC+02 (Prague) — summer time
List of solar flares for September 28, 2004
There were no solar flares on the selected date