Viewing archive of Tuesday, 28 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 | M |
|---|---|---|---|---|---|
| 144 22 | 1 1 | C1.06 | M1.57 | 16 | 3 |
Sunspot regions
Region 14420 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 22 -2 | 340 -20 | FKC | N16W43 | |
|
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Solar flares on this day | ||||
| C6.0 C9.2 C7.1 C3.1 C9.4 C7.8 M1.03 M1.57 M1.11 C2.6 C4.2 C2.7 C3.1 | ||||
Region 14421 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 1 | 20 | HRX | S11W30 | |
|
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Region 14423 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -3 | 10 -10 | AXX | S06W26 | |
|
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Region 14424 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 14 2 | 150 20 | EAO | N17W08 | |
|
||||
Solar flares on this day | ||||
| C1.6 | ||||
Region 14425 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 27 8 | 320 20 | EKC | N04E22 | |
|
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Solar flares on this day | ||||
| C2.3 C2.7 C5.3 C8.1 C2.0 | ||||
Region 14427 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 10 | AXX | S31E26 | |
|
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Region 14428 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 | 20 | CRO | S23E12 | |
|
||||
Solar flares on this day | ||||
| C2.5 | ||||
All times in UTC
Latest news
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Space weather facts
| Last X-flare | 2026/04/24 | X2.5 |
| Last M-flare | 2026/05/22 | M2.3 |
| Last geomagnetic storm | 2026/05/16 | Kp6- (G2) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (2%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2026 | 79.3 -6.6 |
| May 2026 | 87.5 +8.2 |
| Last 30 days | 96 +3.9 |
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