Viewing archive of Friday, 17 April 2026 - 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 |
|---|---|---|---|---|
| 50 -15 | 0 | B3.46 | C4.15 | 1 |
Sunspot regions
Region 14415 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 40 -20 | HSX | S18W47 | |
|
||||
Solar flares on this day | ||||
| B8.4 | ||||
Region 14416 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 -8 | 90 -10 | CSO | N20W78 | |
|
||||
Solar flares on this day | ||||
| B3.8 B4.1 B5.6 B3.7 B4.0 B5.6 B5.6 B7.3 B5.9 | ||||
Region 14419 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 16 -7 | 360 80 | EKI | N13E15 | |
|
||||
Solar flares on this day | ||||
| B7.8 B8.7 B9.1 B9.8 B7.6 B7.7 B6.8 C4.1 | ||||
All times in UTC
Latest news
Wednesday, 1 July 2026
X1.1 solar flare, G2 watch
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G3 geomagnetic storm watch for 4 and 5 June
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Coronal hole faces Earth
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Space weather facts
| Last X-flare | 2026/07/04 | X1.3 |
| Last M-flare | 2026/07/12 | M1.19 |
| Last geomagnetic storm | 2026/07/04 | Kp7+ (G3) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (2%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| June 2026 | 94.4 -7.1 |
| July 2026 | 74.8 -19.6 |
| Last 30 days | 87 -20.2 |
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