Viewing archive of Tuesday, 28 December 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 | M |
|---|---|---|---|---|---|
| 107 22 | 1 1 | B5.23 | M1.89 | 6 | 2 |
Sunspot regions
Region 12916 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 18 -3 | 480 | EKI | S15W08 | |
|
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Region 12918 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 15 | 180 | EAI | N22W31 | |
|
||||
Solar flares on this day | ||||
| C1.8 C2.8 C2.6 M1.89 C7.1 B9.4 C1.0 M1.6 B8.4 | ||||
Region 12919 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 10 | HRX | S11E26 | |
|
||||
Region 12920 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 8 | 70 | BXO | S16W57 | |
|
||||
Region 12921 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 | 110 | DAO | N29W64 | |
|
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All times in UTC
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Space weather facts
| Last X-flare | 2026/02/04 | X4.3 |
| Last M-flare | 2026/02/13 | M1.0 |
| Last geomagnetic storm | 2026/02/05 | Kp5+ (G1) |
| Spotless days | |
|---|---|
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| Monthly mean Sunspot Number | |
|---|---|
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| Last 30 days | 133.6 +37.1 |