Viewing archive of Friday, 22 January 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 |
|---|---|---|---|
| 39 13 | 1 1 | A3.75 | B1.56 |
Sunspot regions
Region 12797 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 | 70 | HAX | S17E10 | |
|
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Region 12798 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 1 | 20 -20 | CRO | S16E19 | |
|
||||
Solar flares on this day | ||||
| B1.5 | ||||
Region 12799 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 | 10 | BXO | N21W30 | |
|
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Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/30 | M2.03 |
| Last geomagnetic storm | 2025/05/01 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2025 | 140.6 +6.4 |
| May 2025 | 59 -81.6 |
| Last 30 days | 119.9 -9.8 |