Viewing archive of Thursday, 31 January 2002 - 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 |
|---|---|---|---|---|---|
| 238 28 | 2 1 | C1.7 | M3.64 | 5 | 1 |
Sunspot regions
Region 9787 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 -3 | 190 -190 | DSO | S07W89 | |
Region 9799 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 | 40 -30 | CSO | S23W35 | |
Region 9800 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 52 | 600 | FKC | N08W03 | |
Solar flares on this day | ||||
| C4.3 C4.9 | ||||
Region 9801 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 7 2 | 80 -30 | DSO | S04E12 | |
Region 9802 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 41 21 | 510 120 | EAC | S17E22 | |
Solar flares on this day | ||||
| C3.3 C4.6 | ||||
Region 9803 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 -3 | 40 -20 | CSO | S24W84 | |
Region 9805 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 | 10 -30 | CSO | N14E39 | |
Region 9806 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 40 10 | HSX | N10E44 | |
Region 9807 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 | 160 | ESO | S27E74 | |
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Space weather facts
| Last X-flare: | 2017/09/10 | X8.2 |
| Last M-flare: | 2017/10/20 | M1.0 |
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