Solar Flare WatchHome › Flare history › 2024
M8.7 solar flare on 2024-07-29
ClassM8.7GOES-16 science data
Peak12:552024-07-29 UTC
Duration16 min
Peak flux8.7e-05W/m²
| Comparison | Value |
|---|---|
| Rank in year | 69 / 3708 |
| Other M/X flares that day | 6 |
| M/X flares that month | 96 |
| Solar cycle | Cycle 25 |
Compared with the strongest flares of 2024
X8.9
X8.6
X7.0
X5.8
X4.4
X4.4
X3.9
X3.4
X3.3
X3.2
X2.9
X2.8
Other M/X flares that day
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 02:33 | 02:37 | 9 | X1.5 | – | – | |
| 05:10 | 05:20 | 17 | M1.0 | – | – | |
| 12:16 | 12:22 | 12 | M1.6 | – | – | |
| 14:04 | 14:46 | 64 | M4.2 | – | – | |
| 19:40 | 19:57 | 29 | M6.4 | – | – | |
| 20:55 | 21:00 | 10 | M1.1 | – | – |
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.
← X1.5 2024-07-29M6.4 2024-07-29 →
About this page
A M8.7 flare that began 2024-07-29 12:47 UTC; No. 69 of 3,708 C-class-or-larger flares in 2024.