Solar Flare WatchHome › Flare history › 1989
X2.9 solar flare on 1989-08-17
ClassX2.9NOAA report
Peak01:351989-08-17 UTC
Duration7 min
Peak flux2.9e-04W/m²
| Comparison | Value |
|---|---|
| Rank among X flares (1975 – Jun 2017) | 117 / 491 |
| Rank in year | 17 / 2608 |
| Other M/X flares that day | 1 |
| M/X flares that month | 57 |
| Solar cycle | Cycle 22 |
| Position on disk | S19W88 |
| Active region | AR 5629 (54 flares) |
Compared with the strongest flares of 1989
X20.0
X15.0
X13.0
X9.8
X6.5
X5.7
X4.5
X4.1
X4.0
X4.0
X3.9
X3.6
Other M/X flares that day
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 18:43 | 19:24 | 167 | M2.9 | – | 5629 |
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.
← X20.0 1989-08-16M6.8 1989-08-29 →
About this page
A X2.9 flare that began 1989-08-17 01:32 UTC; No. 17 of 2,608 C-class-or-larger flares in 1989.