Solar Flare WatchHome › Flare history › 1977
Solar flares in August 1977
C-class12
M-class0
X-class0
LargestC0.51977-08-27
Flares per day (C and above)
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| August 1976 | 4 | 2 | 0 | M0.3 |
| August 1977 | 12 | 0 | 0 | C0.5 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1977-08-27 | 10:58 | 11:06 | 19 | C0.5 | S26W09 | 874 |
| 1977-08-31 | 10:16 | 10:22 | 35 | C0.4 | N25E77 | 882 |
| 1977-08-04 | 20:54 | 20:55 | 22 | C0.3 | N27E57 | 861 |
| 1977-08-07 | 13:22 | 13:27 | 22 | C0.2 | N24E25 | 861 |
| 1977-08-26 | 05:42 | 05:45 | 7 | C0.2 | S25E06 | 874 |
| 1977-08-04 | 22:09 | 22:10 | 7 | C0.1 | N26E59 | 861 |
| 1977-08-04 | 22:26 | 22:26 | 10 | C0.1 | N26E59 | 861 |
| 1977-08-20 | 17:41 | 17:43 | 5 | C0.1 | N19W65 | 864 |
| 1977-08-05 | 11:40 | 11:42 | 5 | C0.0 | N28E51 | 861 |
| 1977-08-06 | 01:15 | 01:17 | 10 | C0.0 | N26E43 | 861 |
| 1977-08-06 | 03:25 | 03:25 | 0 | C0.0 | N26E43 | 861 |
| 1977-08-29 | 07:13 | 07:15 | 6 | C0.0 | S26W29 | 874 |
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
12 flares of class C or larger in August 1977; by M/X count it ranks 460 of 565 months.