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M5.9 solar flare on 2025-11-28
ClassM5.9GOES-18 science data
Peak22:222025-11-28 UTC
Duration13 min
Peak flux5.9e-05W/m²
| Comparison | Value |
|---|---|
| Rank in year | 38 / 3004 |
| Other M/X flares that day | 1 |
| M/X flares that month | 30 |
| Solar cycle | Cycle 25 |
Compared with the strongest flares of 2025
X5.1
X4.0
X2.4
X1.9
X1.9
X1.8
X1.8
X1.7
X1.7
X1.2
X1.2
X1.2
Other M/X flares that day
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 23:55 | 00:02 | 12 | M1.6 | – | – |
All times UTC. Until June 2017 classes are NOAA's reports of the time (GOES-15 and earlier included a 0.7 scaling factor); later classes come from calibrated GOES-16/18 data, so the same flare reads about 1.4× larger. Do not compare the two periods directly.
← X4.0 2025-11-14X1.9 2025-12-01 →
About this page
A M5.9 flare that began 2025-11-28 22:11 UTC; No. 38 of 3,004 C-class-or-larger flares in 2025.