Viewing archive of Friday, 21 July 2023 - Sunspot regions
| Sunspot number | New regions | Background flux | Maximum flux | C |
|---|---|---|---|---|
| 121 -10 | 0 | C1.03 | C2.27 | 2 |
Sunspot regions
Region 13372 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 9 -4 | 340 -40 | EKO | N23W51 | |
|
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Region 13373 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 22 1 | 550 30 | EKC | N08W29 | |
|
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Solar flares on this day | ||||
| C1.5 C2.1 | ||||
Region 13374 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 10 | AXX | S08W26 | |
|
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Region 13376 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 9 1 | 100 -30 | CSO | N25W11 | |
|
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Region 13377 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 | 210 -30 | DSO | S09E20 | |
|
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Region 13378 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 8 1 | 30 | CRO | S26W15 | |
|
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Region 13379 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 8 2 | 270 10 | FHO | N16E49 | |
|
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All times in UTC
Current data suggests there is a moderate possibility for aurora to appear at the following high latitude regions in the near future
Gillam, MB, Whitehorse, YT, Yellowknife, NTFairbanks, AK
Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future
Edmonton, AB, Iqaluit, NU, Saskatoon, SKAnchorage, AK, Juneau, AK
Current data suggests there is a slight possibility for aurora to appear at the following middle latitude regions in the near future
Calgary, ABLatest news
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Latest alerts
04:15 UTC - Geomagnetic activity
Minor G1 geomagnetic storm (Kp5) Threshold Reached: 04:05 UTC
03:15 UTC - Geomagnetic activity
Moderate G2 geomagnetic storm (Kp6) Threshold Reached: 02:59 UTC
01:00 UTC - Geomagnetic activity
Minor G1 geomagnetic storm (Kp5) Threshold Reached: 00:51 UTC
Friday, 4 April 2025
23:30 UTC - Geomagnetic activity
Minor G1 geomagnetic storm (Kp5) Threshold Reached: 23:17 UTC
21:03 UTC - Hemispheric Power Index
The OVATION model predicts the Hemispheric Power Index to reach 75GW at 21:49 UTC
Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/01 | M2.5 |
| Last geomagnetic storm | 2025/04/04 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2025 | 134.2 -20.4 |
| April 2025 | 148 +13.8 |
| Last 30 days | 130.9 -15.2 |