Viewing archive of Saturday, 28 December 2013 - Sunspot regions
Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
| Sunspot number | New regions | Background flux | Maximum flux | C | M |
|---|---|---|---|---|---|
| 95 -12 | 0 -1 | B6.86 | M1.33 | 5 | 1 |
Sunspot regions
Region 11930 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 30 20 | HSX | S08W89 | |
|
||||
Region 11931 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 160 -10 | CAO | S15W43 | |
|
||||
Region 11934 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 15 | 190 40 | ESI | S16W26 | |
|
||||
Solar flares on this day | ||||
| C1.7 C3.66 | ||||
Region 11935 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 0 -10 | AXX | S06W08 | |
|
||||
Region 11936 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 12 -1 | 110 10 | EAI | S16E19 | |
|
||||
Solar flares on this day | ||||
| C1.99 C1.73 C4.27 M1.33 | ||||
Region 11937 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 1 | 20 10 | BXO | S12E46 | |
|
||||
Region 11938 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 60 | HAX | S12E62 | |
|
||||
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| Last M-flare | 2025/12/09 | M1.67 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
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| Monthly mean Sunspot Number | |
|---|---|
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| December 2025 | 160.6 +68.8 |
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