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Solar flares — February 17, 2011

February 17, 2011

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Home Solar flares February 17, 2011

Solar flares on February 17, 2011

The most powerful solar flare in 24 hours

C4.0 (normal) flare - February 17 at 11:51 PM

Solar activity index

Value as of the end of the day on February 17, 2011

Solar activity index

Solar X-ray emission over the past 2 days

Chart of solar X-ray emission (1-8 Å) from February 16, 2011 to February 17, 2011

Time zone — UTC-05 (Columbus)

Solar flares
PNG API: JSON | TXT

List of solar flares for February 17, 2011

The total number of solar flares of class C and higher — 12 flares

C class — 12 | M class — 0 | X class — 0

Class begin max end region
C4.0 23:44 23:51 00:01 1161
C2.0 22:20 22:34 22:40 1161
C1.7 20:02 20:08 20:14 1158
C1.1 16:30 16:35 16:40 1158
C1.3 10:49 10:54 11:04 1158
C2.4 07:33 07:36 07:39 1158
C2.2 05:38 05:44 05:49
C2.6 05:25 05:28 05:32 1158
C1.9 04:24 04:30 04:35 1158
C1.2 03:09 03:13 03:18 1158
C1.2 01:44 01:47 01:51 1158
C1.0 00:33 00:36 00:40 1158