Solar Flare WatchHome › Flare history › Region ranking
Solar flares from active region 6415
C9
M7
X0
LargestM4.31990-12-22
Span6 days
Flares by day
3
7
4
1
1
All flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1990-12-17 | 16:25 | 16:25 | 5 | C1.7 | N11W12 | 6415 |
| 1990-12-17 | 18:51 | 19:11 | 29 | C2.0 | N12W13 | 6415 |
| 1990-12-17 | 20:31 | 20:35 | 31 | C3.1 | N11W13 | 6415 |
| 1990-12-18 | 01:50 | 01:53 | 13 | M1.8 | N14W17 | 6415 |
| 1990-12-18 | 05:13 | 05:21 | 23 | C9.3 | N12W18 | 6415 |
| 1990-12-18 | 09:32 | 09:34 | 11 | C2.8 | N12W21 | 6415 |
| 1990-12-18 | 10:29 | 10:34 | 67 | M1.5 | N11W22 | 6415 |
| 1990-12-18 | 13:22 | 13:27 | 31 | C6.4 | N15W23 | 6415 |
| 1990-12-18 | 16:32 | 16:55 | 67 | C3.6 | N13W24 | 6415 |
| 1990-12-18 | 20:36 | 20:43 | 44 | M1.0 | N13W26 | 6415 |
| 1990-12-19 | 01:03 | 01:19 | 30 | M1.1 | N12W30 | 6415 |
| 1990-12-19 | 04:03 | 04:33 | 84 | M1.7 | N14W31 | 6415 |
| 1990-12-19 | 11:22 | 11:27 | 34 | C6.2 | N12W36 | 6415 |
| 1990-12-19 | 17:48 | 18:18 | 94 | C9.1 | N14W39 | 6415 |
| 1990-12-20 | 07:05 | 07:21 | 79 | M3.7 | N14W47 | 6415 |
| 1990-12-22 | 23:12 | 23:14 | 20 | M4.3 | N13W87 | 6415 |
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 6415 produced 16 C+ flares between 1990-12-17 and 1990-12-22.