Viewing archive of Saturday, 24 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 |
|---|---|---|---|
| 62 33 | 2 2 | B1.32 | B7 |
Sunspot regions
Region 12816 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 7 -1 | 30 -20 | CRO | S24W44 | |
|
||||
Solar flares on this day | ||||
| B1.8 | ||||
Region 12818 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 40 -10 | HSX | S16E10 | |
|
||||
Region 12819 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 10 | BXO | N25W28 | |
|
||||
Region 12820 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 11 | 70 | DAI | S21E05 | |
|
||||
Solar flares on this day | ||||
| B4.3 B4.4 B2.3 B1.0 B4.5 B1.6 B6.6 B3.0 B1.3 B2.3 B3.8 B1.8 B2.4 B2.7 | ||||
All times in UTC
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Space weather facts
| Last X-flare | 2026/03/30 | X1.5 |
| Last M-flare | 2026/04/09 | M1.0 |
| Last geomagnetic storm | 2026/04/03 | Kp7- (G3) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2026 | 85.9 +7.7 |
| April 2026 | 114.3 +28.4 |
| Last 30 days | 102.4 +48.5 |
