Viewing archive of Monday, 20 April 2015 - Sunspot regions
Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
| Sunspot number | New regions | Background flux | Maximum flux | C |
|---|---|---|---|---|
| 125 -17 | 1 | B8 | C3.47 | 3 |
Sunspot regions
Region 12321 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 33 17 | 130 -50 | EAI | N11W36 | |
|
||||
Solar flares on this day | ||||
| C3.43 | ||||
Region 12322 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 1 | 10 | BXO | N13W62 | |
|
||||
Region 12324 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 12 6 | 330 | CKI | N19W04 | |
|
||||
Region 12325 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 12 3 | 220 60 | CAI | N05E06 | |
|
||||
Region 12327 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 3 | 140 | CSO | S09E44 | |
|
||||
Region 12328 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -3 | 10 | AXX | S01W84 | |
|
||||
Region 12329 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 | 40 | CSO | S08W48 | |
|
||||
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| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
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| April 2025 | 120 -14.2 |
| Last 30 days | 111.9 -31 |