Viewing archive of Saturday, 30 September 2017 - Sunspot regions
Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
| Sunspot number | New regions | Background flux | Maximum flux |
|---|---|---|---|
| 38 -1 | 0 | B1.04 | B5.1 |
Sunspot regions
Region 12681 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 70 | HSX | S14W48 | |
|
||||
Region 12682 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 -1 | 120 -10 | CAO | S09E08 | |
|
||||
Solar flares on this day | ||||
| B4.74 | ||||
Region 12683 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 | 270 -10 | HKX | N14E21 | |
|
||||
All times in UTC
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| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/02/25 | M2.4 |
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| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (4%) |
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|---|---|
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| Last 30 days | 52.1 -75.8 |