Viewing archive of Tuesday, 20 May 2025 - 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 |
|---|---|---|---|---|
| 67 1 | 1 | B5.32 | C5.39 | 11 |
Sunspot regions
Region 14087 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 1 | 160 -50 | ESO | N16W27 | |
|
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Solar flares on this day | ||||
| C2.1 C5.3 C1.6 | ||||
Region 14089 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 -1 | 10 -10 | BXO | N18E01 | |
|
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Region 14090 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 -1 | 40 | HAX | S12E09 | |
|
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Region 14091 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -2 | 10 | AXX | S13W05 | |
|
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Region 14092 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 50 20 | HSX | S13E52 | |
|
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Region 14093 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 | 30 | CRO | S06E61 | |
|
||||
Solar flares on this day | ||||
| C1.3 C1.0 C5.4 B9.3 C2.7 C2.5 C2.9 B7.3 C1.2 C1.6 | ||||
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 | 2026/03/28 | M1.3 |
| Last geomagnetic storm | 2026/03/25 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2026 | 78.2 -34.3 |
| March 2026 | 84 +5.8 |
| Last 30 days | 84 +6.2 |
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