Solar Flare WatchHome › Flare history › 1982
X9.8 solar flare on 1982-07-09
ClassX9.8NOAA report
Peak07:381982-07-09 UTC
Duration53 min
Peak flux9.8e-04W/m²
| Comparison | Value |
|---|---|
| Rank among X flares (1975 – Jun 2017) | 22 / 491 |
| Rank in year | 4 / 3850 |
| Other M/X flares that day | 10 |
| M/X flares that month | 111 |
| Solar cycle | Cycle 21 |
| Position on disk | N17E73 |
| 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 |
|---|---|---|---|---|---|---|
| 00:18 | 00:36 | 63 | M1.4 | N10E77 | 3804 | |
| 07:11 | 07:17 | 13 | M1.2 | – | – | |
| 08:25 | 08:59 | 51 | X1.1 | N17E73 | 3804 | |
| 16:16 | 16:21 | 30 | M1.7 | N09E73 | 3804 | |
| 18:36 | 18:41 | 27 | M1.0 | N09E71 | 3804 | |
| 20:18 | 20:30 | 46 | M1.2 | N18E74 | 3804 | |
| 21:05 | 21:08 | 60 | M8.3 | N18E74 | 3804 | |
| 22:07 | 22:12 | 11 | M1.3 | – | 3806 | |
| 22:54 | 23:05 | 62 | M1.9 | N09E69 | 3804 | |
| 23:03 | 23:06 | 8 | M1.2 | – | 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.
← M8.8 1982-07-08X1.1 1982-07-09 →
About this page
A X9.8 flare that began 1982-07-09 07:31 UTC; No. 4 of 3,850 C-class-or-larger flares in 1982.