Sunspot region AR9901
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2002/04/08 | 8 | 60 | BXO | N20E37 | |
| 2002/04/09 | 17 | 130 | DAI | N19E24 | |
| 2002/04/10 | 11 | 200 | DAI | N19E11 | |
| 2002/04/11 | 19 | 190 | DAI | N20W02 | |
| 2002/04/12 | 16 | 190 | DAI | N21W14 | |
| 2002/04/13 | 17 | 190 | DAI | N21W26 | |
| 2002/04/14 | 20 | 250 | DAI | N20W39 | |
| 2002/04/15 | 14 | 180 | DAO | N22W56 | |
| 2002/04/16 | 11 | 350 | DKI | N21W70 | |
| 2002/04/17 | 3 | 270 | HKX | N21W86 |
| C | M |
|---|---|
| 4 | 2 |
The top 6 solar flares from sunspot region 9901
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M5.79 | 2002/04/12 | 17:31 | 18:02 | 18:17 | |
| 2 | M1.72 | 2002/04/15 | 23:05 | 23:24 | 23:41 | |
| 3 | C7.35 | 2002/04/08 | 01:33 | 01:50 | 02:02 | |
| 4 | C4.29 | 2002/04/15 | 11:39 | 11:42 | 11:44 | |
| 5 | C4.15 | 2002/04/13 | 17:06 | 17:31 | 17:41 | |
| 6 | C3.03 | 2002/04/08 | 03:46 | 03:49 | 03:55 |
Latest news
Monday, 30 March 2026
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Tuesday, 17 March 2026
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Sunday, 1 February 2026
Complex sunspot region 4366
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Space weather facts
| Last X-flare | 2026/04/24 | X2.5 |
| Last M-flare | 2026/04/28 | M1.11 |
| Last geomagnetic storm | 2026/04/20 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (2%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2026 | 79.3 -6.6 |
| May 2026 | 145.5 +66.2 |
| Last 30 days | 91 -4.3 |
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