Viewing archive of Saturday, 10 April 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 |
|---|---|---|---|---|
| 129 -10 | 0 -1 | B5 | C2.26 | 2 |
Sunspot regions
Region 8506 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 -2 | 130 | CAO | S28W82 | |
Region 8507 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 -6 | 50 -20 | DSO | N11W23 | |
Region 8508 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 33 -6 | 150 -40 | DAI | N23W02 | |
Solar flares on this day | ||||
| C2.26 | ||||
Region 8509 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 10 | BXO | N14E03 | |
Region 8510 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 1 | 10 10 | BXO | S35E11 | |
Region 8511 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 -1 | 100 -10 | DSO | S17E21 | |
Region 8512 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 2 | 60 50 | CSO | S28E38 | |
Region 8513 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 20 | BXO | S18E49 | |
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| Spotless days | |
|---|---|
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| Monthly mean Sunspot Number | |
|---|---|
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