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Complex sunspot region 4366
zondag 1 februari 2026 19:12 UTC
Sunspot region 4366 has developed into a complex sunspot region with a magnetic Beta-Gamma-Delta layout. The region is impressive and has been producing strong solar flares today including two M5 events, two M6 events and even an X1.0 solar flare (R3-strong) that peaked at 12:33 UTC.
CME impact! S4 solar radiation storm
maandag 19 januari 2026 20:41 UTC
Impact! We just saw the arrival of the coronal mass ejection that was launched during yesterday's X1.9 solar flare. This means it took the CME only 25 hours to travel from the Sun to Earth. That is fast considering most CMEs take two to four days to travel this distance!
X1.9 solar flare with earth-directed CME
zondag 18 januari 2026 21:12 UTC
A long duration X1.95 solar flare (R3-strong) has peaked today at 18:09 UTC which came from sunspot region 4341. This region is located close to the center of the earth-facing solar disk. Quite a surprise to see such a strong solar flare today we must say!
Happy New Year! Celebrate with an M7.1 solar flare!
woensdag 31 december 2025 20:34 UTC
First of all, a happy new year to all of our visitors! Thank you for making 2025 an unforgettable year with all of your amazing feedback and support! As is a tradition in many places, our Sun also celebrates that we again survived another lap around the Sun. Fireworks today as the Sun produced a M7.1 solar flare (R2-moderate) which peakerd at 13:51 UTC.
M8.1 solar flare with earth-directed CME
zondag 7 december 2025 19:22 UTC
Sunspot region 4299 produced an M8.1 solar flare (R2-moderate) which peaked at 20:39 UTC yesterday. Type II and type IV radio emissions were registered along with coronal dimming which are all typical signs that a coronal mass ejection was launched.
X1.9 solar flare, Coronal hole faces Earth
maandag 1 december 2025 18:02 UTC
Welcome to December! New month, new solar activity! Sunspot region 4274 took center stage at the beginning of November with numerous X-class events and some gorgeous coronal mass ejections, some of which arrived at Earth and caused severe G4 geomagnetic storm conditions. However she is not done yet. This sunspot region survived its trip around the far side of the Sun and she is flaring again at the start of December but with a new number: 4299. This morning ex-4274 announced her return with an X1.9 (R3-strong) solar flare that peaked at 02:49 UTC!
X4.0 solar flare
vrijdag 14 november 2025 19:11 UTC
A X4.0 (R3-strong) solar flare peaked at 08:30 UTC this morning. It was of course departing sunspot region 4274 which has been the source of so many solar flares and even geomagnetic storms this past week that provided the fireworks.
X5.1 solar flare, G4 geomagnetic storm watch
dinsdag 11 november 2025 19:07 UTC
Here she blows! Sunspot region 4274 produced its strongest solar flare thus far since it appeared on the east limb and the sixth strongest solar flare of the current solar cycle. An impressive long duration and highly eruptive X5.1 (R3-strong) solar flare peaked this morning at 10:04 UTC.
X1.2 solar flare with earth-directed CME
maandag 10 november 2025 18:28 UTC
Sunspot region 4274 is at it again with a long duration X1.2 solar flare (R3-strong) that peaked at 09:20 UTC this morning. Solar imagery from SDO shows its an eruptive event along with associated Type II and IV radio sweeps and a coronal mass ejection was launched into space. Considering the location of this sunspot region near the center of the solar disk, the resulting coronal mass ejection is very likely to have an earth-directed component. We also entered a S1 minor solar radiation storm following the X1.2 flare which degrades HF radio signals at high latitudes.
X1.7 solar flare
zondag 9 november 2025 19:55 UTC
The anticipated coronal mass ejection (CME) impacts did not really materialize as expected with only one true clear impact back on Friday. Are we in residual CME effects? Possibly but geomagnetic conditions are currently a far cry from the expected moderate to strong storm conditions.
Laatste nieuws
Complex sunspot region 4366
CME impact! S4 solar radiation storm
X1.9 solar flare with earth-directed CME
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Ruimteweer feitjes
| Laatste X-klasse uitbarsting | 03/02/2026 | X1.5 |
| Laatste M-klasse uitbarsting | 03/02/2026 | M2.5 |
| Laatste geomagnetische storm | 28/01/2026 | Kp5+ (G1) |
| Zonnevlekkenloze dagen | |
|---|---|
| Laatste zonnevlekkenloze dag | 08/06/2022 |
| Maandelijks gemiddeld zonnevlekkengetal | |
|---|---|
| december 2025 | 124 +32.2 |
| februari 2026 | 114 -10 |
| Afgelopen 30 dagen | 118.1 +6.2 |