Viewing archive of Sunday, 28 April 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 |
|---|---|---|---|---|
| 97 -3 | 0 -2 | B9.86 | C6.34 | 11 |
Sunspot regions
Region 11728 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -2 | 20 | HRX | N19W02 | |
|
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Region 11730 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 18 3 | 140 -10 | DAI | S18W07 | |
|
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Region 11731 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 25 8 | 420 | DKC | N09E25 | |
|
||||
Solar flares on this day | ||||
| C2.99 C1.57 C2.76 C2.55 C5.32 C2.57 C5.1 C2.13 C1.91 C4.54 | ||||
Region 11732 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 30 10 | HSX | S17E54 | |
|
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Region 11733 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 -1 | 30 | CSO | S17W42 | |
|
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Solar flares on this day | ||||
| C6.32 | ||||
All times in UTC
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| Last M-flare | 2024/12/22 | M1.0 |
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| Spotless days | |
|---|---|
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| Monthly mean Sunspot Number | |
|---|---|
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