Viewing archive of Friday, 16 June 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 |
|---|---|---|---|---|---|
| 120 8 | 0 -2 | C1.2 | M1.08 | 8 | 3 |
Sunspot regions
Region 13329 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 40 | HSX | N24W92 | |
|
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Solar flares on this day | ||||
| C2.8 C3.5 C1.8 | ||||
Region 13331 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 | 70 20 | HSX | S23W54 | |
|
||||
Solar flares on this day | ||||
| C2.7 M1.0 | ||||
Region 13333 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 16 9 | 220 90 | DAI | S11E08 | |
|
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Region 13334 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 10 | AXX | N17E33 | |
|
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Region 13335 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 18 9 | 380 230 | EHI | S15E37 | |
|
||||
Solar flares on this day | ||||
| C2.2 | ||||
Region 13336 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 8 -1 | 80 -50 | CAO | S21E40 | |
|
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Region 13337 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 10 | AXX | N17E55 | |
|
||||
Solar flares on this day | ||||
| M1.0 | ||||
Region 13338 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 2 | 140 120 | CSO | N11E59 | |
|
||||
Solar flares on this day | ||||
| C3.5 M1.0 | ||||
All times in UTC
Latest news
Tuesday, 17 March 2026
M2.7 solar flare, CME arrival possible
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Complex sunspot region 4366
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CME impact! S4 solar radiation storm
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Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/03/18 | M2.7 |
| Last geomagnetic storm | 2026/03/21 | Kp7 (G3) |
| 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 | 76.1 -2.1 |
| Last 30 days | 65.3 -33.8 |