Viewing archive of Friday, 18 December 2009 - Sunspot regions
Courtesy of SDO, SOHO (NASA) and the [MDI, AIA, EVE, and/or HMI] consortium.
| Sunspot number | New regions | Background flux | Maximum flux | M |
|---|---|---|---|---|
| 20 -4 | 0 | B1.19 | M1.09 | 1 |
Sunspot regions
Region 11035 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 14 -6 | 210 70 | EAC | N30W32 | |
Solar flares on this day | ||||
| B2.85 B8.06 B4.44 B3.58 B3.22 B2.55 B7.37 B3.56 B7.7 M1.08 B4.04 B3.88 B5.22 B2.82 | ||||
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| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/22 | M1.3 |
| Last geomagnetic storm | 2025/04/21 | Kp5+ (G1) |
| Spotless days | |
|---|---|
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| Monthly mean Sunspot Number | |
|---|---|
| March 2025 | 134.2 -20.4 |
| April 2025 | 121 -13.2 |
| Last 30 days | 113 -27.2 |