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Solar flares from active region 6545

C35

M16

LargestX3.91991-03-13

Span12 days

Flares by day

1991-03-112

1991-03-125

1991-03-136

1991-03-1412

1991-03-1510

1991-03-167

1991-03-176

1991-03-184

1991-03-192

1991-03-202

1991-03-221

All flares

Date	Begin	Peak	Min	Class	Location	Region
1991-03-11	10:39	10:44	20	C4.2	S09E73	6545
1991-03-11	19:54	19:58	8	C2.5	S09E63	6545
1991-03-12	11:43	11:50	42	C2.3	S13E60	6545
1991-03-12	12:28	12:50	48	X1.7	S07E59	6545
1991-03-12	20:37	20:38	19	C2.3	S09E56	6545
1991-03-12	22:27	22:27	9	C3.7	S08E56	6545
1991-03-12	23:16	23:39	31	C2.3	S11E48	6545
1991-03-13	07:30	07:33	12	M1.4	S09E46	6545
1991-03-13	08:00	08:04	134	X1.3	S11E43	6545
1991-03-13	12:19	12:27	15	C5.9	S09E46	6545
1991-03-13	15:28	15:59	48	X3.9	S12E41	6545
1991-03-13	18:20	18:27	19	C3.7	S11E45	6545
1991-03-13	20:42	20:44	21	C3.4	S10E43	6545
1991-03-14	02:01	02:04	7	C2.6	S09E34	6545
1991-03-14	02:51	02:51	3	C2.6	S09E38	6545
1991-03-14	05:20	05:21	8	C3.1	S10E35	6545
1991-03-14	07:36	07:37	16	C3.3	S09E35	6545
1991-03-14	10:21	10:31	22	C4.7	S09E30	6545
1991-03-14	13:28	13:35	17	C5.2	S10E29	6545
1991-03-14	14:03	14:04	10	C4.0	S09E31	6545
1991-03-14	14:54	15:09	46	C6.4	S09E31	6545
1991-03-14	17:36	17:39	19	M2.1	S09E28	6545
1991-03-14	18:12	18:14	19	X1.8	S10E25	6545
1991-03-14	21:10	21:10	10	C3.4	S09E27	6545
1991-03-14	21:42	21:42	14	C9.7	S09E26	6545
1991-03-15	00:13	00:18	26	C2.9	S10E25	6545
1991-03-15	03:27	03:30	20	M1.0	S08E20	6545
1991-03-15	04:02	04:05	73	M1.6	S10E22	6545
1991-03-15	05:31	05:41	55	C5.6	S10E25	6545
1991-03-15	07:34	07:40	47	M1.0	S09E21	6545
1991-03-15	09:21	09:54	61	C4.0	S09E19	6545
1991-03-15	16:26	16:30	14	C3.8	S12E14	6545
1991-03-15	18:00	18:05	16	C5.8	S10E15	6545
1991-03-15	20:36	20:37	23	C3.4	S10E17	6545
1991-03-15	22:33	22:34	66	M2.1	S11E08	6545
1991-03-16	00:07	00:11	34	C3.6	S10E15	6545
1991-03-16	00:47	00:50	22	X1.8	S09E09	6545
1991-03-16	04:21	04:33	40	C6.8	S13E10	6545
1991-03-16	10:52	10:54	22	M4.8	S14E05	6545
1991-03-16	12:41	12:46	27	C9.2	S09E01	6545
1991-03-16	18:01	18:06	19	M1.1	S10W02	6545
1991-03-16	21:44	21:56	36	M6.0	S09W04	6545
1991-03-17	00:16	00:17	6	C3.2	S10W05	6545
1991-03-17	04:06	04:09	40	C4.4	S10W03	6545
1991-03-17	11:34	11:43	30	C8.4	S09W14	6545
1991-03-17	16:00	16:01	11	C4.7	S10W13	6545
1991-03-17	17:40	17:50	25	M2.4	S10W14	6545
1991-03-17	20:54	21:26	131	X1.0	S10W13	6545
1991-03-18	09:36	09:43	26	C8.0	S10W24	6545
1991-03-18	17:13	17:31	56	M5.3	S10W24	6545
1991-03-18	21:38	21:40	20	M1.4	S10W31	6545
1991-03-18	23:03	23:07	74	M1.3	S10W34	6545
1991-03-19	01:47	01:58	53	M6.7	S10W33	6545
1991-03-19	06:12	06:12	11	M1.2	S10W35	6545
1991-03-20	03:46	03:50	76	M2.5	S09W41	6545
1991-03-20	17:24	17:24	29	C4.5	S11W52	6545
1991-03-22	13:13	13:14	8	C4.8	S11W81	6545

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 6545 produced 57 C+ flares between 1991-03-11 and 1991-03-22.