Home › Flare history › Region ranking

Solar flares from active region 6420

C16

LargestX1.91990-12-26

Span7 days

Flares by day

1990-12-213

1990-12-227

1990-12-231

1990-12-244

1990-12-254

1990-12-265

1990-12-272

All flares

Date	Begin	Peak	Min	Class	Location	Region
1990-12-21	09:42	09:47	10	C3.5	S24E80	6420
1990-12-21	14:55	14:56	16	C4.4	S22E73	6420
1990-12-21	16:08	16:22	52	M1.0	S19E69	6420
1990-12-22	03:33	03:33	11	C9.8	S23E65	6420
1990-12-22	06:33	06:33	7	C5.5	S26E76	6420
1990-12-22	11:12	11:14	6	C4.1	S21E72	6420
1990-12-22	15:44	15:45	61	M1.2	S25E66	6420
1990-12-22	20:31	20:40	59	C7.5	S23E63	6420
1990-12-22	21:52	22:34	92	M5.3	S25E63	6420
1990-12-22	23:57	23:58	3	M1.4	S21E55	6420
1990-12-23	20:07	20:08	18	C3.3	S23E55	6420
1990-12-24	00:56	01:01	35	M1.0	S25E44	6420
1990-12-24	03:06	03:16	30	C4.9	S25E53	6420
1990-12-24	13:22	13:27	8	M2.2	S24E47	6420
1990-12-24	22:32	22:56	57	M1.0	S27E39	6420
1990-12-25	00:51	00:57	18	C5.0	S25E39	6420
1990-12-25	02:49	02:51	8	C3.5	S28E37	6420
1990-12-25	21:58	22:03	30	C5.9	S28E28	6420
1990-12-25	23:58	00:06	29	C3.3	S24E27	6420
1990-12-26	00:53	00:54	5	C1.9	S25E25	6420
1990-12-26	02:04	02:22	74	M1.8	S26E25	6420
1990-12-26	06:50	07:16	46	C2.1	S26E22	6420
1990-12-26	11:33	11:35	33	M1.7	S26E25	6420
1990-12-26	13:55	14:01	93	X1.9	S26E21	6420
1990-12-27	06:49	06:52	23	C2.2	S26E11	6420
1990-12-27	17:44	17:47	43	C6.3	S27E06	6420

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 6420 produced 26 C+ flares between 1990-12-21 and 1990-12-27.