Viewing archive of Wednesday, 16 August 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 |
|---|---|---|---|---|
| 140 33 | 3 1 | B8.68 | C3.33 | 7 |
Sunspot regions
Region 13395 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 | 10 | AXX | N12W0* | |
|
||||
Solar flares on this day | ||||
| C3.3 | ||||
Region 13397 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 | 90 30 | DSO | N18W69 | |
|
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Region 13403 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 12 -6 | 260 60 | DKO | N12W09 | |
|
||||
Solar flares on this day | ||||
| C1.9 C2.0 C1.7 C1.4 C1.8 | ||||
Region 13404 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 -1 | 50 -10 | HSX | S18E35 | |
|
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Region 13405 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 2 | 180 20 | FSO | N08E50 | |
|
||||
Solar flares on this day | ||||
| C1.8 C2.1 | ||||
Region 13406 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 1 | 10 | BXO | S17W32 | |
|
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Region 13407 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 7 1 | 190 160 | DSO | S31E11 | |
|
||||
Region 13408 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 | 10 | BXO | S18W03 | |
|
||||
Region 13409 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 9 | 30 | CRO | N21W17 | |
|
||||
Region 13410 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 | 10 | BXO | S30W34 | |
|
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All times in UTC
Latest news
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X1.9 solar flare with earth-directed CME
Latest forum messages
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Space weather facts
| Last X-flare | 2026/02/04 | X4.3 |
| Last M-flare | 2026/02/16 | M2.4 |
| Last geomagnetic storm | 2026/02/15 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| January 2026 | 112.6 -11.4 |
| February 2026 | 109 -3.6 |
| Last 30 days | 126.1 +25.9 |