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Solar flares in September 1989
C-class176
M-class65
X-class6
LargestX9.81989-09-29
Flares per day (C and above)
M/X flares per day
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| September 1988 | 141 | 10 | 0 | M7.9 |
| September 1989 | 176 | 65 | 6 | X9.8 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1989-09-29 | 10:47 | 11:33 | 228 | X9.8 | – | 5698 |
| 1989-09-01 | 08:10 | 08:18 | 10 | X2.3 | S20E65 | 5671 |
| 1989-09-09 | 09:10 | 09:11 | 24 | X1.4 | N18E28 | 5680 |
| 1989-09-09 | 19:28 | 19:30 | 28 | X1.3 | S15W67 | 5669 |
| 1989-09-03 | 14:28 | 14:31 | 32 | X1.2 | S18E16 | 5669 |
| 1989-09-04 | 08:57 | 09:03 | 49 | X1.1 | S18E19 | 5669 |
| 1989-09-12 | 10:03 | 10:09 | 108 | M7.3 | N17E13 | 5686 |
| 1989-09-11 | 19:38 | 19:40 | 37 | M6.2 | N19W02 | 5680 |
| 1989-09-01 | 23:50 | 23:55 | 49 | M5.8 | S19E42 | 5669 |
| 1989-09-05 | 22:06 | 22:25 | 60 | M5.7 | S17E03 | 5669 |
| 1989-09-12 | 04:35 | 08:14 | 382 | M5.3 | – | – |
| 1989-09-03 | 10:37 | 10:44 | 15 | M5.0 | – | – |
| 1989-09-05 | 21:39 | 21:44 | 62 | M4.7 | S17W10 | 5669 |
| 1989-09-01 | 04:05 | 07:12 | 436 | M4.6 | – | – |
| 1989-09-02 | 22:25 | 22:33 | 55 | M4.6 | S18E32 | 5669 |
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
247 flares of class C or larger in September 1989; by M/X count it ranks 21 of 565 months.