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X0.5 solar flare on 1979-09-19
ClassX0.5NOAA report
Peak23:031979-09-19 UTC
Duration89 min
Peak flux5.0e-05W/m²
| Comparison | Value |
|---|---|
| Rank among X flares (1975 – Jun 2017) | 438 / 491 |
| Rank in year | 3 / 1469 |
| Other M/X flares that day | 4 |
| M/X flares that month | 33 |
| Solar cycle | Cycle 21 |
| Position on disk | N06E33 |
| Active region | AR 1994 (42 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
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 03:59 | 04:09 | 55 | M0.3 | N08W73 | 1982 | |
| 13:49 | 13:58 | 31 | M0.4 | N08W74 | 1982 | |
| 17:40 | 17:44 | 26 | M0.1 | N06E36 | 1994 | |
| 20:31 | 20:57 | 78 | M0.2 | N05E34 | 1994 |
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.
← X0.3 1979-09-16X0.1 1979-09-22 →
About this page
A X0.5 flare that began 1979-09-19 22:56 UTC; No. 3 of 1,469 C-class-or-larger flares in 1979.