Solar Flare WatchHome › Flare history › Region ranking
Solar flares from active region 8806
C34
M6
X0
LargestM5.31999-12-22
Span12 days
Flares by day
7
4
5
2
1
3
2
1
2
6
5
2
All flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1999-12-18 | 01:21 | 01:29 | 17 | C9.4 | N19E82 | 8806 |
| 1999-12-18 | 04:25 | 04:29 | 7 | C5.3 | N18E72 | 8806 |
| 1999-12-18 | 13:13 | 13:18 | 7 | C2.5 | N20E78 | 8806 |
| 1999-12-18 | 16:47 | 16:51 | 7 | C1.9 | N20E73 | 8806 |
| 1999-12-18 | 18:09 | 18:14 | 7 | C5.8 | N18E67 | 8806 |
| 1999-12-18 | 18:30 | 18:36 | 8 | C5.7 | N20E69 | 8806 |
| 1999-12-18 | 19:09 | 19:12 | 6 | M1.5 | N20E69 | 8806 |
| 1999-12-19 | 09:11 | 09:15 | 7 | C2.1 | N17E63 | 8806 |
| 1999-12-19 | 16:16 | 16:20 | 7 | C1.8 | N19E58 | 8806 |
| 1999-12-19 | 19:13 | 19:16 | 5 | C2.3 | N19E57 | 8806 |
| 1999-12-19 | 22:23 | 22:34 | 22 | C5.6 | N21E52 | 8806 |
| 1999-12-20 | 01:40 | 01:44 | 7 | C4.6 | N18E47 | 8806 |
| 1999-12-20 | 04:10 | 04:13 | 9 | C4.4 | N18E49 | 8806 |
| 1999-12-20 | 16:02 | 16:07 | 15 | C2.5 | N18E44 | 8806 |
| 1999-12-20 | 19:50 | 19:53 | 6 | C1.5 | N20E42 | 8806 |
| 1999-12-20 | 22:28 | 22:32 | 7 | C2.5 | N20E40 | 8806 |
| 1999-12-21 | 01:03 | 01:09 | 15 | C3.2 | N18E34 | 8806 |
| 1999-12-21 | 17:12 | 17:19 | 10 | M1.1 | N24E34 | 8806 |
| 1999-12-22 | 18:52 | 19:04 | 16 | M5.3 | N24E19 | 8806 |
| 1999-12-23 | 03:12 | 03:15 | 6 | C1.6 | N24E15 | 8806 |
| 1999-12-23 | 10:05 | 10:09 | 6 | C2.9 | N23E11 | 8806 |
| 1999-12-23 | 19:31 | 19:37 | 9 | C3.4 | N24E06 | 8806 |
| 1999-12-24 | 05:26 | 05:33 | 10 | C3.1 | N20W06 | 8806 |
| 1999-12-24 | 15:38 | 15:49 | 25 | C1.7 | N20W13 | 8806 |
| 1999-12-25 | 17:19 | 17:35 | 44 | C3.3 | N21W28 | 8806 |
| 1999-12-26 | 04:23 | 04:27 | 6 | C2.2 | N19W36 | 8806 |
| 1999-12-26 | 16:13 | 16:17 | 8 | C1.7 | N21W26 | 8806 |
| 1999-12-27 | 00:43 | 00:47 | 9 | C1.4 | N24W35 | 8806 |
| 1999-12-27 | 01:46 | 01:54 | 23 | M1.0 | N24W36 | 8806 |
| 1999-12-27 | 11:54 | 12:06 | 15 | M2.0 | N22W42 | 8806 |
| 1999-12-27 | 17:06 | 17:16 | 17 | C1.1 | N25W43 | 8806 |
| 1999-12-27 | 21:42 | 21:45 | 6 | C1.2 | N21W54 | 8806 |
| 1999-12-27 | 22:27 | 22:36 | 20 | C1.6 | N20W55 | 8806 |
| 1999-12-28 | 00:39 | 00:48 | 13 | M4.5 | N20W56 | 8806 |
| 1999-12-28 | 04:45 | 04:51 | 9 | C1.1 | N23W52 | 8806 |
| 1999-12-28 | 06:53 | 06:59 | 10 | C1.0 | N22W53 | 8806 |
| 1999-12-28 | 10:36 | 10:45 | 25 | C3.0 | N21W64 | 8806 |
| 1999-12-28 | 12:12 | 12:18 | 16 | C1.7 | N24W54 | 8806 |
| 1999-12-29 | 09:22 | 09:27 | 9 | C8.8 | N22W66 | 8806 |
| 1999-12-29 | 21:44 | 21:51 | 9 | C2.9 | N23W72 | 8806 |
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 8806 produced 40 C+ flares between 1999-12-18 and 1999-12-29.