Viewing archive of Thursday, 21 August 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 |
|---|---|---|---|---|
| 76 17 | 1 -1 | B6.98 | C3.27 | 4 |
Sunspot regions
Region 14187 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 1 | 40 | CAO | S18W22 | |
|
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Region 14188 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 40 | HSX | S09E29 | |
|
||||
Solar flares on this day | ||||
| C1.7 | ||||
Region 14189 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 4 | 30 20 | CRO | N08E18 | |
|
||||
Region 14190 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 10 | AXX | N18E42 | |
|
||||
Region 14191 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 220 140 | HSX | N10E65 | |
|
||||
Solar flares on this day | ||||
| C3.2 C1.3 C2.3 C1.1 | ||||
Region 14192 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 | 10 | BXO | N28W28 | |
|
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All times in UTC
Latest news
Tuesday, 11 November 2025
X5.1 solar flare, G4 geomagnetic storm watch
Monday, 10 November 2025
X1.2 solar flare with earth-directed CME
Sunday, 9 November 2025
X1.7 solar flare
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Space weather facts
| Last X-flare | 2025/11/11 | X5.1 |
| Last M-flare | 2025/11/11 | M1.4 |
| Last geomagnetic storm | 2025/11/12 | Kp9- (G4) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| October 2025 | 114.6 -15.2 |
| November 2025 | 100 -14.6 |
| Last 30 days | 98.3 -35.2 |