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Solar flares from active region 4617

C19

LargestX4.71985-01-21

Span5 days

Flares by day

1985-01-203

1985-01-2115

1985-01-221

1985-01-236

1985-01-243

All flares

Date	Begin	Peak	Min	Class	Location	Region
1985-01-20	00:11	00:18	19	C2.3	S10W11	4617
1985-01-20	02:27	02:34	35	C1.3	S09W13	4617
1985-01-20	20:39	20:55	76	M4.1	S09W24	4617
1985-01-21	00:01	00:12	27	C2.0	S10W25	4617
1985-01-21	02:04	02:19	30	C2.0	S09W29	4617
1985-01-21	02:39	03:54	134	M2.2	S10W30	4617
1985-01-21	04:55	05:06	124	M1.1	S11W29	4617
1985-01-21	07:07	07:08	15	C1.9	S09W28	4617
1985-01-21	09:55	10:08	28	C4.6	S10W32	4617
1985-01-21	10:46	10:48	8	C8.8	S11W30	4617
1985-01-21	13:02	13:15	56	C1.8	S08W33	4617
1985-01-21	14:10	14:25	63	M2.4	S08W34	4617
1985-01-21	15:14	15:18	35	M1.2	–	4617
1985-01-21	16:11	16:18	12	C2.2	–	4617
1985-01-21	16:36	16:53	21	M3.3	S09W35	4617
1985-01-21	21:27	21:32	33	M1.2	S08W38	4617
1985-01-21	22:09	22:10	78	C3.0	S06W34	4617
1985-01-21	23:52	00:11	165	X4.7	S08W38	4617
1985-01-22	11:00	11:04	28	C3.1	S10W45	4617
1985-01-23	03:40	04:14	73	C1.1	S13W56	4617
1985-01-23	07:25	07:40	62	M1.3	S12W59	4617
1985-01-23	11:09	11:15	16	C3.6	–	4617
1985-01-23	11:40	11:57	56	C5.8	S10W59	4617
1985-01-23	12:38	12:41	18	C2.5	S11W58	4617
1985-01-23	17:30	17:32	23	C2.0	S11W63	4617
1985-01-24	00:44	00:45	29	C4.0	S11W67	4617
1985-01-24	05:48	05:54	28	C1.8	S11W70	4617
1985-01-24	11:22	11:28	12	C3.0	–	4617

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 4617 produced 28 C+ flares between 1985-01-20 and 1985-01-24.