Viewing archive of Monday, 26 April 2021 - 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 |
|---|---|---|---|---|
| 54 -3 | 0 -1 | A7.16 | C1.36 | 1 |
Sunspot regions
Region 12818 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 40 | HSX | S16W14 | |
|
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Region 12820 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 15 3 | 110 30 | DSI | S21W18 | |
|
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Solar flares on this day | ||||
| B1.8 B7.3 B3.5 B1.1 B1.9 B1.6 B2.5 B1.6 B1.6 B3.2 B1.3 | ||||
Region 12821 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 8 5 | 70 40 | DSI | S22W29 | |
|
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All times in UTC
Latest news
Sunday, 1 February 2026
Complex sunspot region 4366
Monday, 19 January 2026
CME impact! S4 solar radiation storm
Sunday, 18 January 2026
X1.9 solar flare with earth-directed CME
Latest forum messages
AR 4373 3AR4366 972Do the high-resolution sunspot counts point to more complex sunspots? 50Feb 8-9 CMEs 8Current Farside Activity 369
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Space weather facts
| Last X-flare | 2026/02/04 | X4.3 |
| Last M-flare | 2026/02/05 | M1.1 |
| Last geomagnetic storm | 2026/02/05 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| January 2026 | 112.6 -11.4 |
| February 2026 | 139.3 +26.7 |
| Last 30 days | 124.9 +18 |