Viewing archive of Friday, 17 February 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 | X |
|---|---|---|---|---|---|
| 86 -15 | 0 -1 | B9.58 | X2.28 | 7 | 1 |
Sunspot regions
Region 13216 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 110 | HSX | N24W73 | |
|
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Region 13217 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 150 -20 | CSO | S10W48 | |
|
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Region 13219 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 10 | AXX | S06W56 | |
|
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Region 13220 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -1 | 140 -10 | HSX | S14W30 | |
|
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Region 13225 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 70 60 | DAO | S21W61 | |
|
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Region 13226 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 12 -5 | 390 -20 | EHI | N10W20 | |
|
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Solar flares on this day | ||||
| C2.1 | ||||
Region 13229 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 4 | 400 160 | DKO | N30E56 | |
|
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Solar flares on this day | ||||
| C3.8 C1.4 C1.9 C2.2 C2.1 X2.28 | ||||
All times in UTC
Latest news
Tuesday, 17 March 2026
M2.7 solar flare, CME arrival possible
Sunday, 1 February 2026
Complex sunspot region 4366
Monday, 19 January 2026
CME impact! S4 solar radiation storm
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Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/03/26 | M4.0 |
| Last geomagnetic storm | 2026/03/25 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (4%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2026 | 78.2 -34.3 |
| March 2026 | 80.2 +2 |
| Last 30 days | 77.8 -4.5 |