Viewing archive of Tuesday, 27 April 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 |
|---|---|---|---|
| 47 -7 | 0 | A7.47 | B3.38 |
Sunspot regions
Region 12818 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 10 -30 | HSX | S17W27 | |
|
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Region 12820 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 11 -4 | 70 -40 | ESI | S21W32 | |
|
||||
Solar flares on this day | ||||
| B2.2 | ||||
Region 12821 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 -3 | 60 -10 | DAI | S22W43 | |
|
||||
Solar flares on this day | ||||
| B1.2 B1.1 B2.7 B3.3 | ||||
All times in UTC
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Filaments and prominences 534AR 13901 116Incoming & Unnumbered Active Regions 1249Strong far side CME 226AR 13903 1
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Space weather facts
| Last X-flare | 2024/11/06 | X2.39 |
| Last M-flare | 2024/11/20 | M1.1 |
| Last geomagnetic storm | 2024/11/10 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| October 2024 | 166.4 +25 |
| November 2024 | 142.7 -23.8 |
| Last 30 days | 156.1 +4.7 |