Viewing archive of Thursday, 7 September 2023 - 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 |
|---|---|---|---|---|---|
| 135 4 | 1 | B8.9 | M2.12 | 8 | 1 |
Sunspot regions
Region 13417 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 10 -30 | HRX | S07W59 | |
|
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Solar flares on this day | ||||
| C1.1 | ||||
Region 13418 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 1 | 10 | BXO | N21W39 | |
|
||||
Region 13421 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 23 4 | 220 | EAI | N15W40 | |
|
||||
Solar flares on this day | ||||
| C3.3 | ||||
Region 13422 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -3 | 5 -15 | AXX | N13W18 | |
|
||||
Solar flares on this day | ||||
| C1.3 C1.3 | ||||
Region 13423 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 15 1 | 240 -5 | DAO | N17E18 | |
|
||||
Solar flares on this day | ||||
| C3.3 C3.0 | ||||
Region 13424 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 1 | 30 -10 | CRO | N16E46 | |
|
||||
Region 13425 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 8 1 | 60 20 | DAO | N23E52 | |
|
||||
Solar flares on this day | ||||
| C1.7 C2.3 M2.12 | ||||
Region 13426 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 | 10 | BXO | S16E15 | |
|
||||
All times in UTC
Latest news
Sunday, 1 February 2026
Complex sunspot region 4366
Monday, 19 January 2026
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Sunday, 18 January 2026
X1.9 solar flare with earth-directed CME
Latest forum messages
AR4366 1004R4374 1Do the high-resolution sunspot counts point to more complex sunspots? 58AR4362 23Feb 8-9 CMEs 22
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Space weather facts
| Last X-flare | 2026/02/04 | X4.3 |
| Last M-flare | 2026/02/09 | M2.8 |
| Last geomagnetic storm | 2026/02/05 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| January 2026 | 112.6 -11.4 |
| February 2026 | 135.3 +22.7 |
| Last 30 days | 127.2 +23.7 |