Viewing archive of Friday, 4 June 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 |
|---|---|---|---|
| 30 2 | 0 | A6.61 | B4.58 |
Sunspot regions
Region 12827 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 1 | 50 -20 | DSO | N11W41 | |
|
||||
Solar flares on this day | ||||
| B4.6 B2.6 B3.8 B2.6 B3.0 B2.2 B1.5 | ||||
Region 12829 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 1 | 20 10 | CAO | S18E23 | |
|
||||
Solar flares on this day | ||||
| B2.1 B1.8 B2.3 B1.9 B1.0 B1.0 B1.1 | ||||
All times in UTC
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Space weather facts
| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/08 | M1.8 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 162.7 +70.9 |
| Last 30 days | 108 +13.3 |