Solar Flare WatchHome › Flare history › 1989
X6.5 solar flare on 1989-03-17
ClassX6.5NOAA report
Peak17:371989-03-17 UTC
Duration123 min
Peak flux6.5e-04W/m²
| Comparison | Value |
|---|---|
| Rank among X flares (1975 – Jun 2017) | 36 / 491 |
| Rank in year | 5 / 2608 |
| Other M/X flares that day | 5 |
| M/X flares that month | 100 |
| Solar cycle | Cycle 22 |
| Position on disk | N33W60 |
| Active region | AR 5395 (107 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 |
|---|---|---|---|---|---|---|
| 02:35 | 02:38 | 93 | M2.5 | N31W72 | 5395 | |
| 07:15 | 07:19 | 36 | M6.8 | N32W59 | 5395 | |
| 11:07 | 11:09 | 24 | M4.1 | N32W59 | 5395 | |
| 20:07 | 20:14 | 86 | M1.4 | S13E14 | 5403 | |
| 23:11 | 23:12 | 19 | M2.4 | N37W64 | 5395 |
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.
← M6.8 1989-03-17X1.5 1989-03-23 →
About this page
A X6.5 flare that began 1989-03-17 17:29 UTC; No. 5 of 2,608 C-class-or-larger flares in 1989.