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X0.2 solar flare on 1978-05-07
ClassX0.2NOAA report
Peak–1978-05-07 UTC
Duration47 min
Peak flux2.0e-05W/m²
| Comparison | Value |
|---|---|
| Rank among X flares (1975 – Jun 2017) | 450 / 491 |
| Rank in year | 8 / 1141 |
| Other M/X flares that day | 3 |
| M/X flares that month | 26 |
| Solar cycle | Cycle 21 |
| Position on disk | N22W68 |
| Active region | AR 1095 (12 flares) |
Compared with the strongest flares of 1978
X1.5
M5.0
M3.0
M3.0
M3.0
M2.0
M2.0
M2.0
M2.0
M2.0
M2.0
M1.0
Other M/X flares that day
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 00:53 | 00:56 | 35 | M0.2 | N22W60 | 1095 | |
| 06:30 | 06:33 | 5 | M0.1 | N20W90 | 1092 | |
| 15:44 | 16:12 | 43 | M0.4 | N18W66 | 1095 |
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.
← X0.2 1978-04-30X0.1 1978-05-28 →
About this page
A X0.2 flare that began 1978-05-07 03:33 UTC; No. 8 of 1,141 C-class-or-larger flares in 1978.