Solar Flare WatchHome › Flare history › 1991
M6.0 solar flare on 1991-06-28
ClassM6.0NOAA report
Peak06:261991-06-28 UTC
Duration334 min
Peak flux6.0e-05W/m²
| Comparison | Value |
|---|---|
| Rank in year | 94 / 3297 |
| Other M/X flares that day | 1 |
| M/X flares that month | 72 |
| Solar cycle | Cycle 22 |
| Active region | AR 6703 (22 flares) |
Compared with the strongest flares of 1991
X12.0
X12.0
X12.0
X12.0
X12.0
X10.0
X10.0
X9.4
X7.1
X6.1
X5.5
X5.3
Other M/X flares that day
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 10:45 | 10:47 | 25 | M1.1 | S06E06 | 6693 |
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.
← M5.2 1991-06-17M5.0 1991-06-30 →
About this page
A M6.0 flare that began 1991-06-28 04:54 UTC; No. 94 of 3,297 C-class-or-larger flares in 1991.