Viewing archive of Tuesday, 23 September 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 |
|---|---|---|---|---|---|
| 172 20 | 2 2 | C1.24 | M1.09 | 3 | 1 |
Sunspot regions
Region 14216 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 | 50 | HSX | N11W83 | |
|
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Region 14217 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 11 -4 | 170 -80 | CAO | S15W48 | |
|
||||
Solar flares on this day | ||||
| M1.0 | ||||
Region 14220 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 -7 | 150 -50 | ESO | S15W80 | |
|
||||
Region 14221 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 70 -30 | HSX | N04W53 | |
|
||||
Region 14223 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -2 | 10 | AXX | S13W36 | |
|
||||
Region 14224 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 -2 | 30 -10 | CRO | S13W36 | |
|
||||
Solar flares on this day | ||||
| C2.0 | ||||
Region 14225 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 -2 | 90 -110 | HSX | N10W14 | |
|
||||
Region 14226 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 12 6 | 170 -10 | DSI | S10E32 | |
|
||||
Region 14227 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 1 | 80 10 | HAX | S19E27 | |
|
||||
Region 14228 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 40 10 | HSX | N03E41 | |
|
||||
Solar flares on this day | ||||
| C2.5 | ||||
Region 14229 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 | 40 | DAO | S04W32 | |
|
||||
Region 14230 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 8 | 90 | DAO | S11E57 | |
|
||||
Solar flares on this day | ||||
| C1.9 | ||||
All times in UTC
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Space weather facts
| Last X-flare | 2026/02/04 | X4.3 |
| Last M-flare | 2026/02/05 | M1.1 |
| Last geomagnetic storm | 2026/02/05 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| February 2026 | 141.3 +17.3 |
| Last 30 days | 123.9 +16.5 |