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Sun flares

X-ray index

X-ray index

Diagram of the solar flare activity

X-ray emission of the Sun on Feb 20, 2011 and Feb 21, 2011 (GOES-15)

X-ray emission of the Sun on Feb 20, 2011 and Feb 21, 2011

Solar flares on Feb 21, 2011

10 solar flares were observed :

 Active regionBegin, UTMax, UTEnd, UT
Flare of class C1.4116118:25:0018:35:0018:47:00
Flare of class C1.5115815:39:0015:44:0015:55:00
Flare of class C7.8115810:08:0010:12:0010:15:00
Flare of class C1.8115810:00:0010:04:0010:07:00
Flare of class C2.7115809:01:0009:06:0009:09:00
Flare of class C4.3006:02:0006:10:0006:14:00
Flare of class C4.1115805:00:0005:06:0005:08:00
Flare of class C1.5115804:04:0004:10:0004:13:00
Flare of class C1.8115803:10:0003:15:0003:18:00
Flare of class C4.6115802:13:0002:24:0002:27:00

Solar flares on Feb 20, 2011

3 solar flares were observed :

 Active regionBegin, UTMax, UTEnd, UT
Flare of class C1.7116103:54:0003:57:0003:59:00
Flare of class C1.4116202:45:0003:19:0003:31:00
Flare of class C1.2116100:46:0001:23:0001:45:00