Viewing archive of Friday, 22 December 2017 - Sunspot regions
Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
| Sunspot number | New regions | Background flux | Maximum flux | C |
|---|---|---|---|---|
| 18 | 0 | A8.57 | C1.04 | 1 |
Sunspot regions
Region 12692 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 8 2 | 70 | DAO | N18E30 | |
|
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Solar flares on this day | ||||
| B4.39 C1.01 B3.14 B6.35 B3.42 B1.7 B1.8 B3.92 | ||||
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Space weather facts
| Last X-flare | 2024/05/06 | X4.4 |
| Last M-flare | 2024/05/07 | M2.6 |
| Last geomagnetic storm | 2024/05/06 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2024 | 136.5 +31.6 |
| Last 30 days | 159 +66.6 |