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SIDC News

2024/03/28 - 23:56
NOAA 3615 produced its first X-class flare late on 28 March.
2024/03/29 - 00:12
A long-duration X1 flare was associated with the strongest proton event so far this solar cycle, as well as with an earth-directed full halo CME. ***UPDATED***
2024/03/18 - 17:02
Active region NOAA 3599 had already rotated over the Sun's west limb when it produced a spectacular long duration C-class flare.
2024/03/11 - 13:25
The polar field reversal on the Sun is ongoing, but it is not completed yet as testified by observations.
2024/03/05 - 16:58
A moderate geomagnetic storm was observed on 3 March. Polar lights were photographed as far south as mid-England and Lower Saxony in Germany.
2024/02/27 - 15:27
So far this solar cycle, NOAA 13590 is the largest sunspot group and it has produced the strongest solar flare. Some perspective.
2024/02/27 - 14:55
NOAA 3590 produced 3 X-class flares in 24 hours: an X1.8 flare peaking late on 21 February, an X1.7 flare peaking early on 22 February, and an X6.3 event that peaked on 22 February at 22:34UTC. The latter is the strongest flare so far this solar cycle. ***UPDATED.***
2024/02/20 - 08:15
A stunning double eruption took place near the northeast solar limb on 12 February.
2024/02/16 - 11:53
NOAA 3576 unleashed a powerful X2.5 flare on 16 February at 06:53 UTC.
2024/02/13 - 13:31
A view on some of the most prolific flaring events that took place during the week of 5-11 February.
2024/02/09 - 18:26
A strong X3.3 flare peaked at 13:14 UTC on 9 February. The source region is thought to be NOAA 13575, located well beyond the southwest solar limb.
2024/02/07 - 13:56
The provisional smoothed sunspot number peaked at 125.2 in June 2023 (SILSO), marking what is most likely the first maximum of solar cycle 25. A second, higher maximum is expected later in 2024.