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Solar flares from active region 1172
C13
M5
X0
LargestM0.21978-06-28
Span13 days
Flares by day
2
2
3
2
2
2
2
1
2
All flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1978-06-20 | 19:19 | 19:25 | 41 | M0.1 | S20E80 | 1172 |
| 1978-06-20 | 22:09 | 22:11 | 17 | C0.2 | S18E74 | 1172 |
| 1978-06-21 | 15:35 | 15:39 | 11 | C0.6 | S18E65 | 1172 |
| 1978-06-21 | 23:49 | 23:49 | 8 | C0.2 | S17E64 | 1172 |
| 1978-06-22 | 02:37 | 02:37 | 13 | M0.1 | S19E63 | 1172 |
| 1978-06-22 | 10:25 | 10:28 | 11 | C0.3 | S22E62 | 1172 |
| 1978-06-22 | 19:37 | 19:53 | 91 | M0.1 | S18E53 | 1172 |
| 1978-06-24 | 00:08 | 00:08 | 14 | C0.1 | S19E37 | 1172 |
| 1978-06-24 | 13:21 | 13:24 | 77 | C0.3 | S19E29 | 1172 |
| 1978-06-26 | 12:07 | 12:16 | 29 | C0.2 | S21E05 | 1172 |
| 1978-06-26 | 22:06 | 22:14 | 36 | C0.3 | S19W01 | 1172 |
| 1978-06-27 | 00:58 | 01:09 | 24 | C0.7 | S13W08 | 1172 |
| 1978-06-27 | 11:45 | 11:45 | 23 | C0.2 | S19W09 | 1172 |
| 1978-06-28 | 02:52 | 02:56 | 22 | M0.2 | S20W15 | 1172 |
| 1978-06-28 | 13:06 | 13:12 | 12 | C0.1 | S19W28 | 1172 |
| 1978-06-29 | 03:35 | 03:35 | 15 | C0.4 | S16W31 | 1172 |
| 1978-07-02 | 14:02 | 14:04 | 18 | M0.1 | S18W90 | 1172 |
| 1978-07-02 | 14:59 | 15:00 | 6 | C0.2 | S18W90 | 1172 |
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
NOAA active region 1172 produced 18 C+ flares between 1978-06-20 and 1978-07-02.