Sunspot region AR9871
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2002/03/14 | 4 | 150 | DAO | S21E70 | |
| 2002/03/15 | 7 | 210 | EAO | S20E58 | |
| 2002/03/16 | 6 | 200 | ESO | S20E44 | |
| 2002/03/17 | 13 | 280 | EAO | S21E31 | |
| 2002/03/18 | 15 | 330 | ESO | S18E20 | |
| 2002/03/19 | 18 | 330 | EAO | S19E07 | |
| 2002/03/20 | 14 | 260 | EAO | S19W06 | |
| 2002/03/21 | 14 | 240 | EAO | S19W19 | |
| 2002/03/22 | 15 | 240 | EKO | S18W32 | |
| 2002/03/23 | 7 | 200 | EAO | S19W47 | |
| 2002/03/24 | 5 | 170 | DSO | S18W60 | |
| 2002/03/25 | 6 | 100 | DAO | S18W72 | |
| 2002/03/26 | 3 | 50 | DSO | S17W87 |
| C | M |
|---|---|
| 7 | 4 |
The top 10 solar flares from sunspot region 9871
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M5.82 | 2002/03/17 | 19:24 | 19:31 | 19:34 | |
| 2 | M2.18 | 2002/03/12 | 23:01 | 23:13 | 23:24 | |
| 3 | M1.47 | 2002/03/13 | 23:02 | 23:35 | 00:00 | |
| 4 | M1.28 | 2002/03/18 | 19:06 | 19:18 | 19:22 | |
| 5 | C7.01 | 2002/03/14 | 16:44 | 16:53 | 17:01 | |
| 6 | C6.49 | 2002/03/17 | 17:01 | 17:05 | 17:07 | |
| 7 | C5.13 | 2002/03/18 | 16:20 | 16:25 | 16:28 | |
| 8 | C4.43 | 2002/03/17 | 04:52 | 04:58 | 05:01 | |
| 9 | C4.16 | 2002/03/16 | 11:20 | 11:24 | 11:27 | |
| 10 | C3.1 | 2002/03/18 | 21:47 | 21:52 | 21:55 |
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Space weather facts
| Last X-flare | 2026/03/30 | X1.5 |
| Last M-flare | 2026/04/09 | M1.0 |
| Last geomagnetic storm | 2026/04/03 | Kp7- (G3) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2026 | 85.9 +7.7 |
| April 2026 | 107.7 +21.8 |
| Last 30 days | 99.4 +43 |
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