Sunspot region AR8516
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/04/15 | 5 | 60 | CAO | S21E68 | |
| 1999/04/16 | 8 | 50 | CAO | S19E55 | |
| 1999/04/17 | 8 | 70 | CAO | S20E44 | |
| 1999/04/18 | 5 | 80 | CAO | S20E30 | |
| 1999/04/19 | 5 | 60 | CSO | S18E16 | |
| 1999/04/20 | 5 | 70 | CAO | S18E03 | |
| 1999/04/21 | 3 | 40 | CSO | S19W11 | |
| 1999/04/22 | 3 | 50 | CSO | S19W25 | |
| 1999/04/23 | 6 | 40 | CSO | S20W36 | |
| 1999/04/24 | 8 | 30 | CRO | S19W50 | |
| 1999/04/25 | 10 | 20 | CRO | S19W62 |
Latest news
Sunday, 1 February 2026
Complex sunspot region 4366
Monday, 19 January 2026
CME impact! S4 solar radiation storm
Sunday, 18 January 2026
X1.9 solar flare with earth-directed CME
Latest forum messages
AR4374 20Incoming & Unnumbered Active Regions 168What, no CH/HSS thread? 51Current Farside Activity 382Filaments and prominences 489
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Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/02/16 | M2.4 |
| Last geomagnetic storm | 2026/02/16 | Kp6 (G2) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| January 2026 | 112.6 -11.4 |
| February 2026 | 106.5 -6.1 |
| Last 30 days | 124.3 +22.3 |