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Solar flares from active region 1684
C18
M3
X0
LargestM0.21979-04-09
Span10 days
Flares by day
2
2
2
3
4
2
5
1
All flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1979-04-09 | 11:42 | 11:43 | 7 | C0.2 | N08E76 | 1684 |
| 1979-04-09 | 12:18 | 12:26 | 30 | M0.2 | N05E85 | 1684 |
| 1979-04-10 | 08:42 | 08:42 | 5 | C0.4 | N10E67 | 1684 |
| 1979-04-10 | 17:20 | 17:35 | 45 | C0.4 | N08E58 | 1684 |
| 1979-04-11 | 05:21 | 05:24 | 3 | C0.2 | N01E59 | 1684 |
| 1979-04-11 | 13:29 | 13:40 | 26 | M0.1 | N03E51 | 1684 |
| 1979-04-13 | 02:42 | 02:44 | 9 | C0.1 | N04E31 | 1684 |
| 1979-04-13 | 06:12 | 06:12 | 8 | C0.2 | N06E30 | 1684 |
| 1979-04-13 | 16:13 | 16:13 | 8 | C0.1 | N04E26 | 1684 |
| 1979-04-14 | 10:19 | 10:26 | 63 | C0.2 | N07E13 | 1684 |
| 1979-04-14 | 14:41 | 14:46 | 11 | M0.2 | N01E14 | 1684 |
| 1979-04-14 | 19:50 | 19:51 | 7 | C0.1 | N04E12 | 1684 |
| 1979-04-14 | 23:05 | 23:07 | 14 | C0.2 | N04E09 | 1684 |
| 1979-04-15 | 10:34 | 10:39 | 11 | C0.2 | N05W03 | 1684 |
| 1979-04-15 | 20:07 | 20:09 | 18 | C0.8 | N03W05 | 1684 |
| 1979-04-16 | 11:35 | 11:36 | 9 | C0.2 | N05W14 | 1684 |
| 1979-04-16 | 11:55 | 12:00 | 13 | C0.5 | N05W14 | 1684 |
| 1979-04-16 | 16:49 | 16:50 | 14 | C0.4 | N03W16 | 1684 |
| 1979-04-16 | 21:46 | 21:46 | 7 | C0.1 | N04W20 | 1684 |
| 1979-04-16 | 23:46 | 23:46 | 10 | C0.2 | N05W20 | 1684 |
| 1979-04-18 | 18:46 | 18:47 | 16 | C0.1 | N10W48 | 1684 |
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.
About this page
NOAA active region 1684 produced 21 C+ flares between 1979-04-09 and 1979-04-18.