Sunspot region AR11918
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2013/12/09 | 3 | 60 | HAX | S09E76 | |
| 2013/12/10 | 4 | 110 | DAO | S08E63 | |
| 2013/12/11 | 8 | 170 | DAO | S09E51 | |
| 2013/12/12 | 7 | 160 | DAO | S09E38 | |
| 2013/12/13 | 13 | 180 | DAO | S08E25 | |
| 2013/12/14 | 11 | 180 | DAO | S09E11 | |
| 2013/12/15 | 8 | 180 | DAO | S10W02 | |
| 2013/12/16 | 11 | 170 | CAO | S10W15 | |
| 2013/12/17 | 6 | 90 | CAO | S10W29 | |
| 2013/12/18 | 6 | 90 | CAO | S10W29 | |
| 2013/12/19 | 1 | 50 | HAX | S09W55 | |
| 2013/12/20 | 3 | 10 | AXX | S10W70 |
2013/12/09
2013/12/10
2013/12/11
2013/12/12
2013/12/13
2013/12/14
2013/12/15
2013/12/16
2013/12/17
2013/12/18
2013/12/19
2013/12/20
|
2013/12/09
2013/12/10
2013/12/11
2013/12/12
2013/12/13
2013/12/14
2013/12/15
2013/12/16
2013/12/17
2013/12/18
2013/12/19
2013/12/20
|
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
Guess who’s back? AR4366! 3Incoming & Unnumbered Active Regions 199Do the high-resolution sunspot counts point to more complex sunspots? 74Solar cycle 25, solar maximum, is it over? 48Forum alert bar hidden at the bottom 5
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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 | 2026/02/22 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (5%) |
| Current stretch | 4 days |
| Monthly mean Sunspot Number | |
|---|---|
| January 2026 | 112.6 -11.4 |
| February 2026 | 78.9 -33.7 |
| Last 30 days | 86.6 -35.9 |