Viewing archive of Thursday, 28 May 1998 - Sunspot regions
| Sunspot number | New regions | Background flux | Maximum flux | C | M |
|---|---|---|---|---|---|
| 47 -2 | 0 | C1.57 | M1.51 | 19 | 2 |
Sunspot regions
Region 8224 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 | 20 | BXO | S24W90 | |
Solar flares on this day | ||||
| C3.44 C4.43 | ||||
Region 8225 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 1 | 10 10 | AXX | S18E08 | |
Region 8226 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 11 -3 | 280 -40 | ESO | N18W66 | |
Solar flares on this day | ||||
| C4.13 C1.6 C1.3 C3.49 M1.51 M1.15 C2.96 C1.27 C2.93 | ||||
Region 8227 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 2 | 280 50 | HKX | N26E48 | |
Solar flares on this day | ||||
| C3.11 | ||||
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
Oulu, Rovaniemi, SodankyläLuleå
Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future
TórshavnKuopio
Bergen, Trondheim
Arkhangelsk
Sundsvall, Umeå
Current data suggests there is a slight possibility for aurora to appear at the following middle latitude regions in the near future
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22:30 UTC - Geomagnetic activity
Moderate G2 geomagnetic storm (Kp6) Threshold Reached: 22:23 UTC
22:15 UTC - Geomagnetic activity
Minor G1 geomagnetic storm (Kp5) Threshold Reached: 22:00 UTC
20:00 UTC - Geomagnetic activity
Moderate G2 geomagnetic storm (Kp6) Threshold Reached: 19:44 UTC
19:15 UTC - Geomagnetic activity
Minor G1 geomagnetic storm (Kp5) Threshold Reached: 18:59 UTC
18:33 UTC - Solar flare
Moderate M1.31 flare from sunspot region 4055
Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/15 | M1.2 |
| Last geomagnetic storm | 2025/04/06 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2025 | 134.2 -20.4 |
| April 2025 | 128.8 -5.4 |
| Last 30 days | 127 -14.3 |