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X0.2 solar flare on 1979-02-18
ClassX0.2NOAA report
Peak16:511979-02-18 UTC
Duration93 min
Peak flux2.0e-05W/m²
| Comparison | Value |
|---|---|
| Rank among X flares (1975 – Jun 2017) | 455 / 491 |
| Rank in year | 6 / 1469 |
| Other M/X flares that day | 2 |
| M/X flares that month | 45 |
| Solar cycle | Cycle 21 |
| Position on disk | N17W13 |
| Active region | AR 1568 (11 flares) |
Compared with the strongest flares of 1979
M6.0
M5.0
M5.0
M3.0
M2.0
M2.0
M2.0
M2.0
M2.0
M1.0
M1.0
M1.0
Other M/X flares that day
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.
← X0.1 1979-02-18X0.1 1979-02-21 →
About this page
A X0.2 flare that began 1979-02-18 16:36 UTC; No. 6 of 1,469 C-class-or-larger flares in 1979.