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Solar flares from active region 8766
C2
M4
X0
LargestM7.41999-11-17
Span4 days
Flares by day
1
2
2
1
All flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1999-11-14 | 15:47 | 16:07 | 26 | M5.6 | – | 8766 |
| 1999-11-15 | 00:04 | 00:09 | 13 | C8.9 | N17E53 | 8766 |
| 1999-11-15 | 04:45 | 04:49 | 15 | C3.9 | N18E57 | 8766 |
| 1999-11-16 | 02:36 | 02:46 | 18 | M3.8 | N17E38 | 8766 |
| 1999-11-16 | 04:47 | 05:12 | 58 | M1.8 | N18E43 | 8766 |
| 1999-11-17 | 09:47 | 09:57 | 15 | M7.4 | N17E21 | 8766 |
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 8766 produced 6 C+ flares between 1999-11-14 and 1999-11-17.