Viewing archive of Friday, 24 September 2021 - 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 |
|---|---|---|---|---|
| 75 | 1 1 | B1.21 | C2.99 | 1 |
Sunspot regions
Region 12871 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 8 -3 | 140 -70 | DAO | S25E01 | |
|
||||
Solar flares on this day | ||||
| B1.8 B1.7 B2.2 C3.0 B3.0 B2.1 B4.0 B5.4 B4.4 B2.5 B3.4 B3.2 B1.8 | ||||
Region 12872 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 10 -5 | 80 -40 | CAO | N17W12 | |
|
||||
Solar flares on this day | ||||
| B1.8 B1.9 | ||||
Region 12873 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 -4 | 10 | BXO | N25W61 | |
|
||||
Region 12875 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 -1 | 10 | BXO | S33W60 | |
|
||||
Solar flares on this day | ||||
| B2.4 | ||||
Region 12876 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 10 | BXO | S22E04 | |
|
||||
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| Spotless days | |
|---|---|
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| Monthly mean Sunspot Number | |
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| Last 30 days | 155.2 +4.4 |