Viewing archive of Sunday, 18 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 |
|---|---|---|---|---|
| 53 -5 | 0 -1 | B5.32 | C1.52 | 2 |
Sunspot regions
Region 14087 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 -3 | 240 20 | DSO | N15W00 | |
|
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Region 14089 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 -2 | 20 -10 | CRO | N15E28 | |
|
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Solar flares on this day | ||||
| C1.1 | ||||
Region 14090 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 | 40 | HAX | S15E35 | |
|
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Region 14091 |
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|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 30 10 | CAO | S14E23 | |
|
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All times in UTC
Latest news
Sunday, 1 February 2026
Complex sunspot region 4366
Monday, 19 January 2026
CME impact! S4 solar radiation storm
Sunday, 18 January 2026
X1.9 solar flare with earth-directed CME
Latest forum messages
AR4392 (including CMEs) 42Incoming & Unnumbered Active Regions 223Current Farside Activity 416CH 31 HSS 10AR 4393 3
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Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/03/16 | M2.7 |
| Last geomagnetic storm | 2026/03/14 | Kp6 (G2) |
| 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 | 84.2 +6 |
| Last 30 days | 59.8 -62.5 |