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M8.5 solar flare on 1982-07-17
ClassM8.5NOAA report
Peak02:061982-07-17 UTC
Duration79 min
Peak flux8.5e-05W/m²
| Comparison | Value |
|---|---|
| Rank in year | 50 / 3850 |
| Other M/X flares that day | 4 |
| M/X flares that month | 111 |
| Solar cycle | Cycle 21 |
| Position on disk | N11W34 |
| Active region | AR 3804 (107 flares) |
Compared with the strongest flares of 1982
X12.9
X12.0
X10.1
X9.8
X8.0
X7.1
X5.9
X5.0
X4.5
X3.6
X3.2
X3.0
Other M/X flares that day
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 10:28 | 10:33 | 53 | X3.2 | N14W32 | 3804 | |
| 12:33 | 12:59 | 73 | M6.8 | N21W26 | 3804 | |
| 13:41 | 13:50 | 62 | M1.3 | S25W50 | 3806 | |
| 23:10 | 23:16 | 47 | M6.8 | N18W35 | 3804 |
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.
← M6.7 1982-07-15X3.2 1982-07-17 →
About this page
A M8.5 flare that began 1982-07-17 02:03 UTC; No. 50 of 3,850 C-class-or-larger flares in 1982.