Viewing archive of Thursday, 17 February 2011 - 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 |
|---|---|---|---|---|
| 51 | 0 | B8.29 | C8.78 | 13 |
Sunspot regions
Region 11157 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 -7 | 10 -40 | BXO | N19W70 | |
Region 11158 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 19 -17 | 620 20 | EKC | S21W39 | |
Solar flares on this day | ||||
| C4.02 C8.78 C3.37 C2.26 C1.53 C1.71 C1.82 C2.71 C3.8 C3.49 C1.88 C1.59 | ||||
Region 11161 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 9 -4 | 120 -10 | DHI | N13E25 | |
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| Spotless days | |
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| Last 30 days | 125.4 +21.1 |