Viewing archive of Saturday, 13 March 1999 - 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 |
|---|---|---|---|---|---|
| 107 9 | 0 | B7.43 | M2.83 | 7 | 1 |
Sunspot regions
Region 8477 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 -5 | 180 -20 | HHX | S30W68 | |
Region 8483 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 1 | 60 -10 | DSO | S21W85 | |
Region 8484 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 8 -1 | 90 -30 | DSO | S22E30 | |
Region 8485 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 25 3 | 310 20 | EAI | N23E13 | |
Region 8487 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 8 5 | 90 70 | CAO | N17E51 | |
Solar flares on this day | ||||
| C1.57 C1.57 C3.91 M2.83 | ||||
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| Spotless days | |
|---|---|
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| Monthly mean Sunspot Number | |
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