Viewing archive of Wednesday, 21 May 2025 - 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 | M |
|---|---|---|---|---|---|
| 88 21 | 3 2 | B4.79 | M1.25 | 4 | 1 |
Sunspot regions
Region 14087 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 -2 | 120 -40 | HSX | N16W40 | |
|
||||
Solar flares on this day | ||||
| M1.2 B9.3 B6.6 B7.1 | ||||
Region 14089 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 -1 | 20 10 | BXO | N18W12 | |
|
||||
Region 14090 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 | 30 -10 | HAX | S12W03 | |
|
||||
Region 14092 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 50 | HSX | S13E38 | |
|
||||
Region 14093 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 -2 | 30 | CAO | S06E52 | |
|
||||
Solar flares on this day | ||||
| C1.3 C1.2 C1.2 | ||||
Region 14094 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 30 | CRO | N20E47 | |
|
||||
Region 14095 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 | 30 | CAO | S05W56 | |
|
||||
Solar flares on this day | ||||
| B7.9 B8.8 C2.5 | ||||
Region 14096 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 30 | HSX | N07E72 | |
|
||||
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Space weather facts
| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/09 | M1.1 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 162.7 +70.9 |
| Last 30 days | 107.4 +11.4 |