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X2.8 solar flare on 1982-12-07
ClassX2.8NOAA report
Peak23:541982-12-07 UTC
Duration71 min
Peak flux2.8e-04W/m²
| Comparison | Value |
|---|---|
| Rank among X flares (1975 – Jun 2017) | 120 / 491 |
| Rank in year | 15 / 3850 |
| Other M/X flares that day | 4 |
| M/X flares that month | 88 |
| Solar cycle | Cycle 21 |
| Active region | AR 4007 (20 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 |
|---|---|---|---|---|---|---|
| 10:01 | 10:09 | 35 | M1.5 | S27E75 | 4021 | |
| 15:10 | 15:11 | 40 | M1.2 | N05W03 | 4014 | |
| 17:43 | 18:09 | 59 | M1.3 | S19W79 | 4007 | |
| 17:48 | 17:49 | 22 | M1.0 | S23W41 | 4019 |
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.
← X4.5 1982-11-26M6.7 1982-12-08 →
About this page
A X2.8 flare that began 1982-12-07 23:36 UTC; No. 15 of 3,850 C-class-or-larger flares in 1982.