Sunspot region AR9991
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2002/06/08 | 1 | 300 | HKX | S22E69 | |
| 2002/06/09 | 1 | 250 | HHX | S21E57 | |
| 2002/06/10 | 1 | 270 | HKX | S22E43 | |
| 2002/06/11 | 1 | 270 | HHX | S22E30 | |
| 2002/06/12 | 6 | 290 | DHO | S22E17 | |
| 2002/06/13 | 10 | 340 | DHO | S22E04 | |
| 2002/06/14 | 7 | 310 | CHO | S20W09 | |
| 2002/06/15 | 4 | 350 | CKO | S21W21 | |
| 2002/06/16 | 3 | 290 | CHO | S21W34 | |
| 2002/06/17 | 2 | 270 | HKX | S21W47 | |
| 2002/06/18 | 2 | 330 | CKO | S22W61 | |
| 2002/06/19 | 1 | 250 | HHX | S21W72 | |
| 2002/06/20 | 4 | 220 | CHO | S22W85 |
| B | C |
|---|---|
| 2 | 3 |
The top 5 solar flares from sunspot region 9991
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C2.27 | 2002/06/12 | 21:14 | 21:19 | 21:22 | |
| 2 | C2.06 | 2002/06/17 | 19:54 | 20:16 | 20:26 | |
| 3 | C1.79 | 2002/06/16 | 21:12 | 21:24 | 21:28 | |
| 4 | B9.71 | 2002/06/16 | 16:42 | 16:54 | 17:02 | |
| 5 | B9.56 | 2002/06/13 | 07:07 | 07:15 | 07:17 |
Latest news
Monday, 30 March 2026
X1.5 solar flare
Tuesday, 17 March 2026
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Complex sunspot region 4366
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Space weather facts
| Last X-flare | 2026/03/30 | X1.5 |
| Last M-flare | 2026/04/04 | 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 | 128.3 +42.3 |
| Last 30 days | 97.5 +35.7 |
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