Viewing archive of Thursday, 21 November 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 |
|---|---|---|---|---|---|
| 85 -10 | 0 | B8.57 | M1.76 | 3 | 1 |
Sunspot regions
Region 11893 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 -11 | 260 -170 | DKC | S13W91 | |
|
||||
Solar flares on this day | ||||
| M1.76 | ||||
Region 11895 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 1 | 20 -20 | HSX | S17W70 | |
|
||||
Region 11896 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 90 -70 | HAX | N09W59 | |
|
||||
Region 11897 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 -5 | 40 -30 | DSO | S18W58 | |
|
||||
Solar flares on this day | ||||
| C2.61 | ||||
Region 11899 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 7 -1 | 560 -50 | DKO | N07W29 | |
|
||||
Region 11900 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 -3 | 60 -40 | CSO | S23W88 | |
|
||||
Region 11903 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 1 | 150 20 | HAX | S12E36 | |
|
||||
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| Last M-flare | 2025/12/04 | M6.0 |
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| Spotless days | |
|---|---|
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| Monthly mean Sunspot Number | |
|---|---|
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