Viewing archive of Wednesday, 21 December 2011 - Sunspot regions
Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
| Sunspot number | New regions | Background flux | Maximum flux | C |
|---|---|---|---|---|
| 93 -46 | 0 -1 | C1.11 | C6.18 | 16 |
Sunspot regions
Region 11374 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 50 -20 | HSX | S19W90 | |
Region 11376 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 14 7 | 40 20 | DAI | N19W46 | |
Solar flares on this day | ||||
| C2.17 C2.78 C2.46 C2.26 C2.86 | ||||
Region 11377 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 10 -10 | BXO | N12W40 | |
Region 11380 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 -2 | 30 | CAO | S21E31 | |
Region 11381 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 8 -1 | 90 10 | DAO | S17W01 | |
Region 11382 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 13 1 | 120 20 | DAI | S19E06 | |
Solar flares on this day | ||||
| C4.56 C6.17 C5.24 C5.65 C3.15 C3.61 | ||||
Region 11383 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 40 20 | HSX | N03E53 | |
Region 11384 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 | 90 | DAO | N12E61 | |
Solar flares on this day | ||||
| C2.89 C3.71 C3.12 C1.88 C2.87 | ||||
All times in UTC
Latest news
Thursday, 16 January 2025
Coronal hole faces Earth
Saturday, 4 January 2025
Sunspot region 3947, X-class solar flares
Monday, 30 December 2024
Two earth-directed coronal mass ejections
Latest forum messages
Penticton down? 701/21/2025 AR 3967 M3.3 CME 2The Terminator Theory and Implications for growth of Cycle 25 64AR 3967 32Filaments and prominences 615
More topicsSupport SpaceWeatherLive.com!
A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!
Space weather facts
| Last X-flare | 2025/01/04 | X1.85 |
| Last M-flare | 2025/01/21 | M3.3 |
| Last geomagnetic storm | 2025/01/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2024 | 154.5 +2 |
| January 2025 | 145.2 -9.3 |
| Last 30 days | 163.2 +45.8 |