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Solar flares in November 1987
C-class57
M-class10
X-class0
LargestM3.51987-11-21
Flares per day (C and above)
M/X flares per day
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| November 1986 | 6 | 0 | 0 | C4.1 |
| November 1987 | 57 | 10 | 0 | M3.5 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1987-11-21 | 17:55 | 18:05 | 66 | M3.5 | S23E16 | 4891 |
| 1987-11-05 | 04:56 | 04:58 | 16 | M3.1 | N30W73 | 4875 |
| 1987-11-05 | 23:34 | 23:35 | 5 | M2.1 | N29W75 | 4875 |
| 1987-11-04 | 23:23 | 23:25 | 9 | M1.5 | N27W62 | 4875 |
| 1987-11-04 | 17:13 | 17:15 | 28 | M1.3 | N28W67 | 4875 |
| 1987-11-20 | 04:12 | 04:18 | 83 | M1.3 | S21E35 | 4891 |
| 1987-11-20 | 23:31 | 23:37 | 100 | M1.3 | S21E25 | 4891 |
| 1987-11-07 | 20:28 | 20:30 | 17 | M1.2 | N31W90 | 4875 |
| 1987-11-19 | 07:41 | 07:46 | 78 | M1.1 | S21E42 | 4891 |
| 1987-11-18 | 03:17 | 03:19 | 9 | M1.0 | S22W07 | 4890 |
| 1987-11-02 | 18:13 | 18:19 | 27 | C7.8 | S23E57 | 4882 |
| 1987-11-02 | 13:55 | 13:56 | 26 | C7.0 | S23E65 | 4882 |
| 1987-11-05 | 09:56 | 10:00 | 32 | C6.5 | S21E35 | 4883 |
| 1987-11-06 | 19:49 | 20:11 | 137 | C4.3 | S27E61 | 4886 |
| 1987-11-03 | 09:06 | 09:10 | 47 | C4.1 | N30W44 | 4875 |
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
67 flares of class C or larger in November 1987; by M/X count it ranks 234 of 565 months.