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Solar flares in September 1975
C-class11
M-class0
X-class0
LargestC0.01975-09-01
Flares per day (C and above)
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1975-09-01 | 15:12 | 15:12 | 7 | C0.0 | N03E54 | 633 |
| 1975-09-01 | 19:33 | 19:35 | 12 | C0.0 | N07E47 | 633 |
| 1975-09-02 | 09:25 | 09:25 | 13 | C0.0 | N06E39 | 633 |
| 1975-09-03 | 21:15 | 21:15 | 0 | C0.0 | N08E22 | 633 |
| 1975-09-04 | 13:02 | 13:19 | 44 | C0.0 | N05E10 | 635 |
| 1975-09-08 | 02:01 | 02:05 | 20 | C0.0 | N09W37 | 633 |
| 1975-09-09 | 01:45 | – | 5 | C0.0 | S12E40 | 644 |
| 1975-09-10 | 14:16 | 14:21 | 18 | C0.0 | N08W75 | 633 |
| 1975-09-11 | 20:17 | 20:18 | 2 | C0.0 | S10E05 | 644 |
| 1975-09-18 | 13:51 | 13:53 | 24 | C0.0 | N08W02 | 649 |
| 1975-09-19 | 17:05 | 17:10 | 27 | C0.0 | N08W17 | 649 |
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
11 flares of class C or larger in September 1975; by M/X count it ranks 449 of 565 months.