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Solar flares from active region 8771
C27
M10
X1
LargestX1.41999-11-27
Span12 days
Flares by day
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All flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1999-11-18 | 01:42 | 01:49 | 12 | M1.4 | S17E55 | 8771 |
| 1999-11-19 | 15:58 | 16:01 | 6 | C1.9 | S16E38 | 8771 |
| 1999-11-20 | 22:17 | 22:35 | 34 | M3.2 | S15E19 | 8771 |
| 1999-11-21 | 08:22 | 08:29 | 17 | C6.0 | S17E14 | 8771 |
| 1999-11-22 | 16:59 | 17:02 | 8 | C1.6 | S18W03 | 8771 |
| 1999-11-22 | 21:52 | 21:55 | 6 | C1.7 | S16W05 | 8771 |
| 1999-11-23 | 04:01 | 04:05 | 9 | C2.0 | S16W16 | 8771 |
| 1999-11-23 | 06:13 | 06:25 | 20 | C2.0 | – | 8771 |
| 1999-11-23 | 22:12 | 22:15 | 9 | C1.6 | S15W25 | 8771 |
| 1999-11-24 | 06:32 | 06:35 | 8 | C1.5 | S19W33 | 8771 |
| 1999-11-24 | 18:43 | 19:30 | 60 | C6.6 | – | 8771 |
| 1999-11-24 | 22:33 | 22:49 | 50 | C4.3 | – | 8771 |
| 1999-11-24 | 23:27 | 23:37 | 17 | M3.0 | S19W43 | 8771 |
| 1999-11-25 | 05:59 | 06:13 | 30 | C1.6 | S19W46 | 8771 |
| 1999-11-25 | 15:19 | 15:27 | 17 | C1.1 | S13W45 | 8771 |
| 1999-11-25 | 17:12 | 17:17 | 13 | C7.4 | S16W45 | 8771 |
| 1999-11-25 | 18:39 | 18:45 | 12 | C1.6 | S19W53 | 8771 |
| 1999-11-25 | 18:59 | 19:19 | 30 | M2.0 | S15W48 | 8771 |
| 1999-11-26 | 01:10 | 01:23 | 28 | M5.7 | – | 8771 |
| 1999-11-26 | 03:50 | 04:00 | 24 | M1.9 | S19W58 | 8771 |
| 1999-11-26 | 05:53 | 05:58 | 28 | C2.8 | S19W59 | 8771 |
| 1999-11-26 | 08:48 | 09:06 | 32 | C5.0 | S14W55 | 8771 |
| 1999-11-26 | 10:57 | 11:03 | 16 | C2.6 | S19W61 | 8771 |
| 1999-11-26 | 20:59 | 21:03 | 9 | C1.4 | S15W60 | 8771 |
| 1999-11-26 | 21:48 | 22:15 | 33 | C3.1 | S19W68 | 8771 |
| 1999-11-27 | 00:19 | 00:44 | 34 | C7.8 | – | 8771 |
| 1999-11-27 | 02:01 | 02:06 | 11 | C7.2 | S14W63 | 8771 |
| 1999-11-27 | 02:36 | 03:01 | 36 | M2.8 | S19W71 | 8771 |
| 1999-11-27 | 05:43 | 05:49 | 15 | M1.2 | S14W66 | 8771 |
| 1999-11-27 | 07:45 | 07:48 | 5 | C2.3 | S12W62 | 8771 |
| 1999-11-27 | 11:11 | 11:22 | 27 | C2.8 | S15W66 | 8771 |
| 1999-11-27 | 12:05 | 12:12 | 11 | X1.4 | S15W68 | 8771 |
| 1999-11-28 | 00:47 | 01:02 | 25 | C2.8 | S19W83 | 8771 |
| 1999-11-28 | 01:26 | 01:46 | 34 | M3.5 | – | 8771 |
| 1999-11-28 | 05:49 | 05:57 | 18 | M1.1 | S15W81 | 8771 |
| 1999-11-28 | 11:50 | 11:53 | 18 | C5.3 | S16W79 | 8771 |
| 1999-11-28 | 17:01 | 17:05 | 8 | C5.1 | S13W73 | 8771 |
| 1999-11-29 | 16:28 | 16:34 | 10 | C6.6 | S14W90 | 8771 |
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 8771 produced 38 C+ flares between 1999-11-18 and 1999-11-29.