Viewing archive of Thursday, 16 December 2021 - Sunspot regions
Courtesy of SDO, SOHO (NASA) and the [MDI, AIA, EVE, and/or HMI] consortium.
| Sunspot number | New regions | Background flux | Maximum flux | C |
|---|---|---|---|---|
| 127 48 | 2 | B4.97 | C3.39 | 7 |
Sunspot regions
Region 12905 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 10 10 | AXX | S12W11 | |
|
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Region 12906 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 9 5 | 60 -60 | CSO | S29W04 | |
|
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Region 12907 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 23 11 | 180 -80 | DAI | S19E27 | |
|
||||
Solar flares on this day | ||||
| C1.6 | ||||
Region 12908 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 10 4 | 210 -90 | DAO | S19E44 | |
|
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Region 12909 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 -1 | 150 | DAO | S19E66 | |
|
||||
Solar flares on this day | ||||
| B7.8 C1.4 C1.3 C3.4 C3.0 | ||||
Region 12910 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 | 20 | CRO | N13W17 | |
|
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Region 12911 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 20 | CRO | N19E70 | |
|
||||
Solar flares on this day | ||||
| C2.0 B7.8 C2.3 C3.0 | ||||
All times in UTC
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Space weather facts
| Last X-flare | 2024/12/08 | X2.2 |
| Last M-flare | 2024/12/22 | M1.0 |
| Last geomagnetic storm | 2024/12/17 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2024 | 152.5 -13.9 |
| December 2024 | 103.3 -49.2 |
| Last 30 days | 115.4 -40.8 |