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X7.1 solar flare on 1982-07-12
ClassX7.1NOAA report
Peak09:181982-07-12 UTC
Duration284 min
Peak flux7.1e-04W/m²
| Comparison | Value |
|---|---|
| Rank among X flares (1975 – Jun 2017) | 32 / 491 |
| Rank in year | 6 / 3850 |
| Other M/X flares that day | 10 |
| M/X flares that month | 111 |
| Solar cycle | Cycle 21 |
| Position on disk | N11E37 |
| 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 |
|---|---|---|---|---|---|---|
| 00:53 | 01:00 | 17 | M5.3 | N14E42 | 3804 | |
| 03:10 | 03:14 | 45 | M2.2 | N19E46 | 3804 | |
| 05:00 | 05:00 | 12 | M1.0 | N10E35 | 3804 | |
| 06:09 | 06:12 | 5 | M1.9 | – | – | |
| 06:21 | 06:28 | 35 | M3.4 | – | – | |
| 07:47 | 07:50 | 6 | M3.7 | – | 3806 | |
| 16:30 | 16:31 | 23 | M1.6 | N10E33 | 3804 | |
| 18:11 | 18:11 | 21 | M1.2 | N14E36 | 3804 | |
| 19:07 | 19:08 | 9 | M1.9 | N20E38 | 3804 | |
| 20:35 | 20:54 | 21 | M2.3 | N10E31 | 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.
← M5.3 1982-07-12M7.5 1982-07-14 →
About this page
A X7.1 flare that began 1982-07-12 09:16 UTC; No. 6 of 3,850 C-class-or-larger flares in 1982.