Viewing archive of Wednesday, 8 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 |
|---|---|---|---|---|
| 87 2 | 1 1 | B2.5 | C8.34 | 4 |
Sunspot regions
Region 12863 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -1 | 80 | HSX | S17W53 | |
|
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Region 12864 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -9 | 110 -110 | HSX | N23W46 | |
|
||||
Solar flares on this day | ||||
| C2.4 | ||||
Region 12866 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 15 -8 | 500 70 | DKC | S18E07 | |
|
||||
Solar flares on this day | ||||
| B4.8 C1.2 B7.7 C8.4 B4.6 | ||||
Region 12868 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 17 7 | 300 60 | DHI | S21W07 | |
|
||||
Solar flares on this day | ||||
| C1.1 B4.4 C2.4 | ||||
Region 12869 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 10 | BXO | S35E12 | |
|
||||
All times in UTC
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Space weather facts
| Last X-flare | 2026/02/02 | X1.6 |
| Last M-flare | 2026/02/02 | M2.5 |
| 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 |