Sunspot region AR12921
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2021/12/28 | 4 | 110 | DAO | N29W64 | |
| 2021/12/29 | 3 | 180 | DSO | N29W81 | |
| 2021/12/30 | 2 | 300 | DSO | N30W90 | |
| 2021/12/31 | 2 | 300 | DSO | N30W0* |
2021/12/28
2021/12/29
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2021/12/31
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2021/12/29
2021/12/30
2021/12/31
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| B |
|---|
| 2 |
The top 2 solar flares from sunspot region 12921
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | B7.8 | 2021/12/30 | 00:15 | 00:24 | 00:31 | |
| 2 | B5.5 | 2021/12/29 | 21:43 | 21:49 | 21:54 |
Latest news
Monday, 23 December 2024
M9.0 solar flare with earth-directed CME
Sunday, 8 December 2024
X2.2 solar flare, SDO outage
Thursday, 21 November 2024
Major far side eruption, S1 radiation storm
Latest forum messages
AR 3938 4jsoc 74AR 13932 77Ask your obscure/"stupid" space weather questions. 1242024/12/23 AR13932 M8.9 & M4.1 associated CMEs 13
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Space weather facts
| Last X-flare | 2024/12/08 | X2.2 |
| Last M-flare | 2024/12/24 | 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 | 115.2 -37.3 |
| Last 30 days | 120.1 -38.2 |