Viewing archive of Saturday, 11 September 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 |
|---|---|---|---|---|
| 93 -6 | 0 | B6.99 | 1 |
Sunspot regions
Region 12863 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 30 -40 | HSX | S17W92 | |
|
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Region 12864 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -1 | 50 -30 | HSX | N22W90 | |
|
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Region 12866 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 17 | 400 -60 | DKC | S18W32 | |
|
||||
Solar flares on this day | ||||
| B4.9 B4.3 B4.5 | ||||
Region 12868 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 21 1 | 260 10 | DKI | S21W50 | |
|
||||
Solar flares on this day | ||||
| B5.2 B3.9 B7.8 C1.3 B5.4 | ||||
Region 12869 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 -6 | 40 -20 | CAO | S35W26 | |
|
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Solar flares on this day | ||||
| B7.1 B5.3 | ||||
All times in UTC
Latest news
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Complex sunspot region 4366
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Sunday, 18 January 2026
X1.9 solar flare with earth-directed CME
Latest forum messages
AR4366 657X1.9 CME 1364X8 CME 11New satellites - Proba-3, PUNCH, SWFO-L1, GOES-U/19 73Current Farside Activity 351
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Space weather facts
| Last X-flare | 2026/02/03 | X1.5 |
| Last M-flare | 2026/02/03 | M7.3 |
| Last geomagnetic storm | 2026/01/28 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| February 2026 | 114 -10 |
| Last 30 days | 118.1 +6.2 |