Viewing archive of Wednesday, 28 September 2016 - Sunspot regions
Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
| Sunspot number | New regions | Background flux | Maximum flux | C |
|---|---|---|---|---|
| 20 -1 | 0 | B1.21 | C1.07 | 1 |
Sunspot regions
Region 12597 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 11 -2 | 110 40 | DAO | S14W52 | |
|
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Solar flares on this day | ||||
| B5.12 C1.02 B6.18 | ||||
All times in UTC
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Incoming & Unnumbered Active Regions 16AR4294 / 4296 / 4298 31250 mhz F2 75AR 4299 24Current Farside Activity 236
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| Last X-flare | 2025/12/01 | X1.9 |
| Last M-flare | 2025/12/04 | M6.0 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 186 +94.2 |
| Last 30 days | 106.4 +13.7 |