Viewing archive of Thursday, 13 December 2001

Sunspot numberNew regionsBackground fluxCMX
212 293 2C2.1421

Solar flares

Region Start Maximum End
9733 C4.1 02:33 02:41 02:59
9727 M1.8 06:32 06:40 07:00
- C3.1 10:06 10:12 10:24
- C3.4 13:22 13:26 13:31
- C2.4 13:58 14:03 14:07
9733 X6.2 Play 14:20 14:30 14:35
9727 M1.4 22:44 23:07 23:17

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Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2018/09/22Kp5 (G1)
Number of spotless days in 2018:152
Current stretch spotless days:13

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