Viewing archive of Monday, 16 December 2013 - Sunspot regions
| Sunspot number | New regions | Background flux | Maximum flux | C |
|---|---|---|---|---|
| 114 -44 | 1 1 | C1.01 | C5.26 | 5 |
Sunspot regions
Region 11912 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 60 | HSX | S21W0* | |
|
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Region 11917 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 33 7 | 340 80 | DKC | S15W37 | |
|
||||
Solar flares on this day | ||||
| C5.22 C2.8 | ||||
Region 11918 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 11 3 | 170 -10 | CAO | S10W15 | |
|
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Region 11920 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 -2 | 50 -20 | HSX | N13W07 | |
|
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Region 11921 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 9 | 400 20 | HKX | N07W03 | |
|
||||
Region 11922 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 -1 | 40 -20 | CAO | N10W84 | |
|
||||
Region 11923 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 10 -1 | 30 -10 | CRO | N17W37 | |
|
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Region 11925 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 20 | HRX | S07E28 | |
|
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Region 11926 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 7 1 | 10 -10 | BXO | N09W14 | |
|
||||
All times in UTC
Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future
Oulu, Rovaniemi, Sodankylä, UtsjokiKirkenes, Tromsø
Arkhangelsk, Murmansk, Norilsk, Vorkuta
Kiruna, Luleå
Latest news
Strong G3 geomagnetic storm watch for 23 March
Coronal hole faces Earth
X2.0 solar flare from sunspot region 4001
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Latest alerts
Strong G3 geomagnetic storm watch for 23 March
Yesterday around 16 UTC an M1.2 solar flare took place around sunspot region 4028. The solar flare triggered a filament eruption which erupted from the center of the earth-facing solar disk.
12:18 UTC - Hemispheric Power Index
The OVATION model predicts the Hemispheric Power Index to reach 75GW at 13:10 UTC
03:45 UTC - Geomagnetic activity
Minor G1 geomagnetic storm (Kp5) Threshold Reached: 03:35 UTC
03:15 UTC - Geomagnetic activity
Moderate G2 geomagnetic storm (Kp6) Threshold Reached: 02:59 UTC
01:45 UTC - Geomagnetic activity
Minor G1 geomagnetic storm (Kp5) Threshold Reached: 01:36 UTC
Space weather facts
| Last X-flare | 2025/02/23 | X2.0 |
| Last M-flare | 2025/03/21 | M1.2 |
| Last geomagnetic storm | 2025/03/21 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2025 | 154.6 +17.6 |
| March 2025 | 140.3 -14.3 |
| Last 30 days | 141.7 -9.5 |