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Goodbye 2644
Sunspot region 2644 was again the most active sunspot region on the earth-facing solar disk today. It produced two M-clas solar flares today: an M1.2 solar flare (R1-minor) at 01:05 UTC and an M5.8 solar flare (R2-moderate) that peaked at 14:29 UTC. The M5.8 solar flare is this region's third solar flare that peaked above the M5 threshold and the strongest solar flare produced by sunspot region 2644 thus far.
Four M-class solar flares, Sunspot region 2645
Solar activity was at high levels yesterday (2 April 2017) as our Sun produced four M-class solar flares! The strongest of these solar flares was an M5.7 solar flare (R2-moderate) that peaked at 20:33 UTC.
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Space weather facts
| Last X-flare | 2024/06/01 | X1.3 |
| Last M-flare | 2024/05/31 | M1.0 |
| Last geomagnetic storm | 2024/05/17 | Kp6 (G2) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2024 | 136.5 +31.6 |
| Last 30 days | 147.7 +4.8 |