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M8.7 solar flare on 1989-06-17
ClassM8.7NOAA report
Peak16:161989-06-17 UTC
Duration121 min
Peak flux8.7e-05W/m²
| Comparison | Value |
|---|---|
| Rank in year | 71 / 2608 |
| Other M/X flares that day | 1 |
| M/X flares that month | 96 |
| Solar cycle | Cycle 22 |
| Position on disk | N16W40 |
| Active region | AR 5528 (25 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 |
|---|---|---|---|---|---|---|
| 10:14 | 10:20 | 25 | 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.
← M6.8 1989-06-16X1.6 1989-06-20 →
About this page
A M8.7 flare that began 1989-06-17 15:49 UTC; No. 71 of 2,608 C-class-or-larger flares in 1989.