Viewing archive of Saturday, 2 October 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 |
|---|---|---|---|---|
| 25 -3 | 0 | B1.36 | C1.68 | 1 |
Sunspot regions
Region 12877 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 -2 | 150 -50 | DAO | S20W78 | |
|
||||
Solar flares on this day | ||||
| B2.8 C1.7 | ||||
Region 12880 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 -1 | 230 -30 | ESO | N32E04 | |
|
||||
Solar flares on this day | ||||
| B2.1 B2.7 | ||||
All times in UTC
Latest news
Sunday, 1 February 2026
Complex sunspot region 4366
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CME impact! S4 solar radiation storm
Sunday, 18 January 2026
X1.9 solar flare with earth-directed CME
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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 | 140.8 +28.2 |
| Last 30 days | 124.6 +17.7 |