Viewing archive of Tuesday, 14 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 |
|---|---|---|---|---|
| 13 -19 | 0 | B1.4 | C1.12 | 1 |
Sunspot regions
Region 12866 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 -4 | 60 -40 | HSX | S18W71 | |
|
||||
Solar flares on this day | ||||
| B3.0 B2.4 | ||||
Region 12868 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 -2 | 60 -40 | DSO | S21W88 | |
|
||||
Solar flares on this day | ||||
| B4.4 B8.7 B4.9 C1.1 B2.6 B2.0 B1.8 B1.8 B2.4 B3.7 | ||||
All times in UTC
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Space weather facts
| Last X-flare | 2026/01/18 | X1.9 |
| Last M-flare | 2026/01/21 | M3.4 |
| 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 |
| January 2026 | 119.3 -4.7 |
| Last 30 days | 119.6 +1.6 |