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M9.9 solar flare on 2023-11-28
ClassM9.9GOES-16 science data
Peak19:502023-11-28 UTC
Duration33 min
Peak flux9.9e-05W/m²
| Comparison | Value |
|---|---|
| Rank in year | 14 / 3209 |
| Other M/X flares that day | 1 |
| M/X flares that month | 16 |
| Solar cycle | Cycle 25 |
Compared with the strongest flares of 2023
X4.9
X2.8
X2.2
X2.0
X1.9
X1.6
X1.4
X1.2
X1.2
X1.1
X1.0
X1.0
Other M/X flares that day
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 19:07 | 19:32 | – | M3.5 | – | – |
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.
← M8.7 2023-09-21M5.5 2023-12-08 →
About this page
A M9.9 flare that began 2023-11-28 19:35 UTC; No. 14 of 3,209 C-class-or-larger flares in 2023.