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X3.8 solar flare on 2005-01-17
ClassX3.8NOAA report
Peak09:522005-01-17 UTC
Duration188 min
Peak flux3.8e-04W/m²
| Comparison | Value |
|---|---|
| Rank among X flares (1975 – Jun 2017) | 78 / 491 |
| Rank in year | 5 / 699 |
| Other M/X flares that day | 1 |
| M/X flares that month | 27 |
| Solar cycle | Cycle 23 |
| Position on disk | N15W25 |
| Active region | AR 10720 (88 flares) |
Compared with the strongest flares of 2005
X17.0
X7.1
X6.2
X5.4
X3.8
X3.6
X2.6
X2.1
X1.7
X1.7
X1.5
X1.3
Other M/X flares that day
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 03:10 | 03:21 | 22 | M2.6 | N15W21 | 10720 |
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.
← X2.6 2005-01-15M6.7 2005-01-19 →
About this page
A X3.8 flare that began 2005-01-17 06:59 UTC; No. 5 of 699 C-class-or-larger flares in 2005.