Viewing archive of Thursday, 17 April 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 |
|---|---|---|---|---|
| 118 48 | 2 | B8.77 | C4.65 | 6 |
Sunspot regions
Region 14056 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 1 | 30 10 | CSO | S07W73 | |
|
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Region 14060 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 8 -3 | 120 -20 | CAO | N08W31 | |
|
||||
Solar flares on this day | ||||
| C1.5 | ||||
Region 14062 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 18 15 | 280 30 | DKI | S02E36 | |
|
||||
Solar flares on this day | ||||
| C2.8 C2.5 C2.1 | ||||
Region 14063 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 | 10 | BXO | N05W07 | |
|
||||
Region 14064 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 8 5 | 200 120 | DAI | N13E56 | |
|
||||
Solar flares on this day | ||||
| C4.6 | ||||
Region 14065 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 30 | HSX | S30E63 | |
|
||||
Region 14066 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 9 | 40 | CAI | S05E49 | |
|
||||
Solar flares on this day | ||||
| C1.5 | ||||
All times in UTC
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Space weather facts
| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/31 | M7.11 |
| Last geomagnetic storm | 2026/01/02 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| January 2026 | 119.3 -4.8 |
| Last 30 days | 108.9 +1.7 |