Viewing archive of Friday, 11 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 |
|---|---|---|---|---|
| 105 22 | 2 2 | C1.25 | C8.33 | 11 |
Sunspot regions
Region 13391 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 30 -10 | HSX | N22W88 | |
|
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Region 13392 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 30 | HSX | N09W0* | |
|
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Region 13394 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 -1 | 210 -30 | CSO | S23W43 | |
|
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Solar flares on this day | ||||
| C2.9 | ||||
Region 13395 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 19 8 | 130 | DSI | N13W31 | |
|
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Solar flares on this day | ||||
| C2.4 C8.2 C8.1 C4.7 C3.4 C3.7 C2.7 C2.9 C4.9 | ||||
Region 13397 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 4 | 20 10 | CSO | N19W06 | |
|
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Region 13399 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -2 | 10 | AXX | S16E08 | |
|
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Region 13400 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 10 | AXX | S14W05 | |
|
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Region 13401 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 10 | BXO | N26W44 | |
|
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All times in UTC
Latest news
Sunday, 1 February 2026
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Latest forum messages
AR 4373 13Do the high-resolution sunspot counts point to more complex sunspots? 68Feb 8-9 CMEs 31Richard Carrington 1Yes, we really went to the moon before. 7
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Space weather facts
| Last X-flare | 2026/02/04 | X4.3 |
| Last M-flare | 2026/02/13 | M1.0 |
| 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 | 121.7 +9.1 |
| Last 30 days | 131.5 +34.7 |