Viewing archive of Thursday, 16 April 2015 - Sunspot regions
Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
| Sunspot number | New regions | Background flux | Maximum flux | C |
|---|---|---|---|---|
| 85 | 1 1 | C1.07 | C8.28 | 7 |
Sunspot regions
Region 12320 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 70 | DAO | S14W0* | |
Region 12321 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 20 6 | 480 -140 | EKC | N12E16 | |
|
||||
Solar flares on this day | ||||
| C2.84 C3.25 C2.92 C2.54 | ||||
Region 12322 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 10 -10 | BXO | N14W13 | |
|
||||
Region 12323 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -4 | 30 -30 | HSX | S17W85 | |
|
||||
Region 12324 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 7 -4 | 430 40 | DKO | N18E46 | |
|
||||
Solar flares on this day | ||||
| C8.27 C2 | ||||
Region 12325 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 3 | 200 70 | CSO | N05E56 | |
|
||||
Solar flares on this day | ||||
| C4.77 | ||||
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Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
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| Last geomagnetic storm | 2026/02/22 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (5%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
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| March 2026 | 85 -27.6 |
| Last 30 days | 71 -47.7 |