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Solar flares in December 1979
C-class85
M-class21
X-class2
LargestX0.11979-12-19
Flares per day (C and above)
M/X flares per day
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| December 1978 | 78 | 25 | 7 | X0.2 |
| December 1979 | 85 | 21 | 2 | X0.1 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1979-12-19 | 22:02 | 22:16 | 30 | X0.1 | S16E33 | 2204 |
| 1979-12-20 | 05:59 | 06:16 | 111 | X0.1 | S14E34 | 2204 |
| 1979-12-12 | 17:13 | 17:15 | 26 | M0.3 | N11W77 | 2174 |
| 1979-12-13 | 13:53 | 13:53 | 4 | M0.2 | N11W89 | 2174 |
| 1979-12-14 | 17:59 | 18:05 | 12 | M0.2 | S17W33 | 2183 |
| 1979-12-18 | 19:02 | 19:04 | 33 | M0.2 | N09W39 | 2202 |
| 1979-12-20 | 09:30 | 09:32 | 43 | M0.2 | S18E25 | 2204 |
| 1979-12-20 | 10:15 | 10:17 | 3 | M0.2 | S19E85 | 2207 |
| 1979-12-25 | 06:54 | – | 10 | M0.2 | S18W42 | 2204 |
| 1979-12-29 | 00:28 | 00:39 | 41 | M0.2 | S18W85 | 2204 |
| 1979-12-29 | 07:10 | 07:12 | 15 | M0.2 | S17W90 | 2204 |
| 1979-12-03 | 15:01 | 15:13 | 71 | M0.1 | S22E52 | 2161 |
| 1979-12-04 | 04:50 | 04:55 | 20 | M0.1 | S26E22 | 2156 |
| 1979-12-13 | 08:19 | 08:21 | 45 | M0.1 | N25E16 | 2186 |
| 1979-12-13 | 20:57 | 21:08 | 33 | M0.1 | S35W40 | 2180 |
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
108 flares of class C or larger in December 1979; by M/X count it ranks 137 of 565 months.