Sunspot region AR8636
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/07/18 | 4 | 70 | CAO | N20E73 | |
| 1999/07/19 | 9 | 310 | EAO | N20E61 | |
| 1999/07/20 | 18 | 330 | EAI | N20E51 | |
| 1999/07/21 | 25 | 390 | EAI | N20E36 | |
| 1999/07/22 | 35 | 390 | FSO | N21E25 | |
| 1999/07/23 | 45 | 550 | FKI | N21E12 | |
| 1999/07/24 | 61 | 600 | FKC | N21E00 | |
| 1999/07/25 | 58 | 570 | FKC | N21W14 | |
| 1999/07/26 | 52 | 560 | FKI | N21W28 | |
| 1999/07/27 | 51 | 520 | FKC | N21W42 | |
| 1999/07/28 | 34 | 610 | FKI | N21W54 | |
| 1999/07/29 | 22 | 500 | EAC | N21W68 | |
| 1999/07/30 | 8 | 360 | EKI | N20W82 | |
| 1999/07/31 | 4 | 80 | CAO | N21W90 |
| C | M |
|---|---|
| 8 | 3 |
The top 10 solar flares from sunspot region 8636
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M4.84 | 1999/07/24 | 07:49 | 08:02 | 08:25 | |
| 2 | M4.39 | 1999/07/27 | 12:58 | 14:05 | 14:20 | |
| 3 | M1.34 | 1999/07/23 | 04:59 | 05:05 | 05:20 | |
| 4 | C9.49 | 1999/07/23 | 23:39 | 00:47 | 01:14 | |
| 5 | C5.56 | 1999/07/25 | 05:08 | 05:13 | 05:19 | |
| 6 | C4.77 | 1999/07/24 | 05:38 | 05:41 | 05:44 | |
| 7 | C4.56 | 1999/07/24 | 05:00 | 05:03 | 05:06 | |
| 8 | C3.01 | 1999/07/21 | 18:41 | 18:44 | 18:48 | |
| 9 | C2.61 | 1999/07/21 | 08:09 | 08:14 | 08:19 | |
| 10 | C1.59 | 1999/07/22 | 14:36 | 14:37 | 14:41 |
Latest news
Tuesday, 17 March 2026
M2.7 solar flare, CME arrival possible
Sunday, 1 February 2026
Complex sunspot region 4366
Monday, 19 January 2026
CME impact! S4 solar radiation storm
Latest forum messages
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Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/03/18 | M2.7 |
| Last geomagnetic storm | 2026/03/14 | Kp6 (G2) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (4%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
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| March 2026 | 82.4 +4.2 |
| Last 30 days | 62 -53.2 |