Viewing archive of Thursday, 31 January 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 |
|---|---|---|---|---|
| 47 -9 | 0 | B2 | C1.58 | 1 |
Sunspot regions
Region 11662 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 50 -20 | HSX | N27W25 | |
Region 11663 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -8 | 80 -40 | HSX | S09W11 | |
Solar flares on this day | ||||
| C1.57 B4.2 B2.81 | ||||
Region 11665 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 1 | 180 -40 | DSO | N11E49 | |
Region 11666 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 10 | HSX | S24E48 | |
All times in UTC
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| Last M-flare | 2024/11/13 | M1.0 |
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| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
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| Last 30 days | 164.5 +20 |