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Today 5 years ago: X5.4 solar flare

Blast from the past! Do you remember these solar flares? It is today exactly five years ago that sunspot region 11429 erupted with a X5.4 solar flare. This spectacular blast was closely followed by an X1.3 solar flare from nearby sunspot region 11430.

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Last X-flare2024/05/29X1.4
Last M-flare2024/05/29M5.6
Last geomagnetic storm2024/05/17Kp6 (G2)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
April 2024136.5 +31.6
May 2024147.3 +10.8
Last 30 days147.3 +9.1

This day in history*

Solar flares
12002M2.31
22002M1.98
32023M1.4
42023M1.3
51999M1.25
ApG
1193266G4
2200590G4
3200359G3
4194936G3
5196742G2
*since 1994

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