Viewing archive of Tuesday, 21 April 2026 - 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 |
|---|---|---|---|---|
| 68 22 | 3 3 | B5.18 | C5.37 | 11 |
Sunspot regions
Region 14415 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 60 | HSX | S18W99 | |
|
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Region 14419 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 14 -11 | 250 -10 | EHO | N14W38 | |
|
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Region 14420 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 | 60 | DAO | N17E50 | |
|
||||
Solar flares on this day | ||||
| C1.3 C1.7 C1.5 C2.2 C4.0 C1.4 C1.9 C1.2 B8.1 C1.6 B8.2 B9.1 B9.0 C1.9 B8.0 B6.8 | ||||
Region 14421 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 50 | CAO | S09E66 | |
|
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Solar flares on this day | ||||
| C5.3 | ||||
Region 14422 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 | 20 | CRO | N09W30 | |
|
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All times in UTC
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Space weather facts
| Last X-flare | 2026/06/03 | X1.0 |
| Last M-flare | 2026/06/21 | M2.6 |
| Last geomagnetic storm | 2026/06/11 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (2%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| May 2026 | 101.4 +22.1 |
| June 2026 | 100.6 -0.8 |
| Last 30 days | 107.8 +9.3 |
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