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Solar flares from active region 5712
C4
M4
X0
LargestM3.51989-09-28
Span9 days
Flares by day
1
2
1
1
1
1
1
All flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1989-09-27 | 23:55 | – | 5 | M1.6 | S19E85 | 5712 |
| 1989-09-28 | 03:32 | 03:36 | 15 | C4.6 | S21E80 | 5712 |
| 1989-09-28 | 13:47 | 13:49 | 27 | M3.5 | S19E85 | 5712 |
| 1989-09-30 | 02:39 | 02:54 | 83 | M2.9 | S18E35 | 5712 |
| 1989-10-01 | 08:12 | 08:16 | 29 | C2.8 | S17E23 | 5712 |
| 1989-10-02 | 08:41 | 08:55 | 58 | M1.5 | S16E05 | 5712 |
| 1989-10-03 | 17:28 | 17:30 | 27 | C3.3 | S16W16 | 5712 |
| 1989-10-05 | 06:08 | 06:09 | 16 | C4.5 | S18W38 | 5712 |
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 5712 produced 8 C+ flares between 1989-09-27 and 1989-10-05.