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M8.7 solar flare on 1990-05-23
ClassM8.7NOAA report
Peak04:201990-05-23 UTC
Duration94 min
Peak flux8.7e-05W/m²
| Comparison | Value |
|---|---|
| Rank in year | 18 / 2551 |
| Other M/X flares that day | 2 |
| M/X flares that month | 36 |
| Solar cycle | Cycle 22 |
| Position on disk | N33W55 |
| Active region | AR 6063 (23 flares) |
Compared with the strongest flares of 1990
X9.3
X5.5
X3.6
X3.4
X3.0
X2.4
X2.2
X1.9
X1.8
X1.7
X1.5
X1.4
Other M/X flares that day
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 07:18 | 08:17 | 124 | M2.0 | S14W60 | 6064 | |
| 08:51 | 09:04 | 69 | M2.7 | – | – |
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.
← X5.5 1990-05-21X9.3 1990-05-24 →
About this page
A M8.7 flare that began 1990-05-23 04:01 UTC; No. 18 of 2,551 C-class-or-larger flares in 1990.