Viewing archive of Monday, 15 December 2025 - Sunspot regions
Courtesy of SDO, SOHO (NASA) and the [MDI, AIA, EVE, and/or HMI] consortium.
| Sunspot number | New regions | Background flux | Maximum flux | C |
|---|---|---|---|---|
| 73 -5 | 1 | B5.05 | C3.95 | 7 |
Sunspot regions
Region 14304 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 | 60 | DAI | N26W99 | |
|
||||
Solar flares on this day | ||||
| C1.8 C2.0 C3.9 | ||||
Region 14305 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -4 | 60 -10 | HSX | S25W50 | |
|
||||
Region 14307 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 8 -4 | 120 50 | DAO | S15W48 | |
|
||||
Solar flares on this day | ||||
| C1.9 C1.4 B8.3 B6.5 C1.3 | ||||
Region 14308 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 7 3 | 30 10 | CSO | N09E17 | |
|
||||
Solar flares on this day | ||||
| C1.3 | ||||
Region 14309 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 1 | 10 | BXO | S09W44 | |
|
||||
Region 14310 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 | 10 | BXO | N01W25 | |
|
||||
All times in UTC
Latest news
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Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/03/13 | M1.2 |
| Last geomagnetic storm | 2026/03/03 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (4%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2026 | 78.2 -34.3 |
| March 2026 | 81.7 +3.5 |
| Last 30 days | 56.6 -72.2 |