Viewing archive of Friday, 16 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 |
|---|---|---|---|
| 44 22 | 2 2 | A4.86 | B3.41 |
Sunspot regions
Region 12814 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 8 -4 | 20 -30 | BXO | S22W45 | |
|
||||
Solar flares on this day | ||||
| B1.5 B1.1 B3.4 | ||||
Region 12815 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 10 | BXO | S21W21 | |
|
||||
Solar flares on this day | ||||
| B1.3 | ||||
Region 12816 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 80 | CAO | S24E59 | |
|
||||
Solar flares on this day | ||||
| B1.6 B1.2 | ||||
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Space weather facts
| Last X-flare | 2024/05/15 | X2.9 |
| Last M-flare | 2024/05/16 | M1.0 |
| Last geomagnetic storm | 2024/05/13 | Kp6 (G2) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2024 | 136.5 +31.6 |
| May 2024 | 153.1 +16.6 |
| Last 30 days | 176.7 +74.1 |