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Solar flares from active region 5858
C8
M4
X1
LargestX1.01989-12-30
Span6 days
Flares by day
2
5
3
1
2
All flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1989-12-28 | 07:27 | 07:27 | 18 | C9.2 | S18E36 | 5858 |
| 1989-12-28 | 21:08 | 21:15 | 29 | M4.1 | S18E30 | 5858 |
| 1989-12-29 | 06:37 | 06:39 | 8 | C5.4 | S19E23 | 5858 |
| 1989-12-29 | 07:23 | 07:23 | 6 | C3.6 | S20E27 | 5858 |
| 1989-12-29 | 07:48 | 07:58 | 35 | C5.0 | S18E22 | 5858 |
| 1989-12-29 | 16:10 | 16:11 | 39 | M2.8 | S19E18 | 5858 |
| 1989-12-29 | 18:28 | 18:29 | 7 | M9.7 | S19E21 | 5858 |
| 1989-12-30 | 01:42 | 02:06 | 83 | M5.3 | S17E15 | 5858 |
| 1989-12-30 | 04:09 | 04:18 | 65 | X1.0 | S19E09 | 5858 |
| 1989-12-30 | 07:22 | 07:23 | 18 | C8.8 | S18E10 | 5858 |
| 1989-12-31 | 00:57 | 00:57 | 13 | C4.1 | S17E03 | 5858 |
| 1990-01-02 | 02:50 | 02:54 | 27 | C4.0 | S19W28 | 5858 |
| 1990-01-02 | 13:59 | 14:14 | 49 | C4.4 | S18W35 | 5858 |
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 5858 produced 13 C+ flares between 1989-12-28 and 1990-01-02.