Viewing archive of Wednesday, 21 August 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 |
|---|---|---|---|---|
| 149 34 | 3 3 | B7.14 | C3.24 | 5 |
Sunspot regions
Region 11817 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 60 | CSO | S19W0* | |
|
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Region 11818 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 -1 | 210 -40 | HAX | S05W76 | |
|
||||
Solar flares on this day | ||||
| C1.64 | ||||
Region 11820 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 10 5 | 60 50 | DAI | S12W34 | |
|
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Region 11823 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 1 | 120 -50 | CSO | S08E03 | |
|
||||
Solar flares on this day | ||||
| C1.8 | ||||
Region 11824 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 -6 | 50 -70 | CAO | S12W53 | |
|
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Region 11825 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 12 -8 | 80 10 | DAO | N16W40 | |
|
||||
Solar flares on this day | ||||
| C1.05 | ||||
Region 11827 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 7 -1 | 160 -140 | DAO | S18E44 | |
|
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Region 11828 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 2 | 60 30 | CAO | N16E57 | |
|
||||
Solar flares on this day | ||||
| C3.19 | ||||
All times in UTC
Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future
Gillam, MB, Yellowknife, NTLatest news
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02:09 UTC - Solar flare
Moderate M1.54 flare from sunspot region 4048
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Minor R1 radio blackout in progress (≥M1 - current: M1.24)
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Space weather facts
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| Last M-flare | 2025/03/30 | M1.5 |
| Last geomagnetic storm | 2025/03/27 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
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| March 2025 | 127.5 -27.1 |
| Last 30 days | 127.5 -24.7 |