Viewing archive of Saturday, 23 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 |
|---|---|---|---|
| 32 4 | 0 -1 | B1.97 | B6.22 |
Sunspot regions
Region 12886 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 120 20 | HSX | S19W04 | |
|
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Region 12887 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 11 4 | 420 270 | DKI | S24E51 | |
|
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Solar flares on this day | ||||
| B3.6 B5.5 B4.7 B3.6 B3.3 B3.8 B3.4 B3.7 B3.8 | ||||
All times in UTC
Latest news
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Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/22 | M1.3 |
| Last geomagnetic storm | 2025/04/21 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2025 | 134.2 -20.4 |
| April 2025 | 122.8 -11.4 |
| Last 30 days | 119.6 -11.6 |