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Solar flares from active region 889

LargestX0.21977-09-07

Span14 days

Flares by day

1977-09-071

1977-09-091

1977-09-101

1977-09-111

1977-09-161

1977-09-183

1977-09-192

1977-09-203

All flares

Date	Begin	Peak	Min	Class	Location	Region
1977-09-07	22:27	22:33	6	X0.2	N10E90	889
1977-09-09	16:04	16:46	51	X0.2	N10E80	889
1977-09-10	04:54	05:30	51	C0.3	N05E71	889
1977-09-11	18:50	18:50	17	C0.2	N09E50	889
1977-09-16	21:20	23:07	295	M0.5	N07W21	889
1977-09-18	00:19	00:35	35	M0.2	N07W33	889
1977-09-18	12:58	13:01	13	C0.0	N10W45	889
1977-09-18	19:06	19:11	23	C0.2	N08W44	889
1977-09-19	00:04	00:12	38	C0.7	N08W47	889
1977-09-19	10:28	10:38	100	X0.2	N08W58	889
1977-09-20	03:00	03:13	18	M0.2	N11W59	889
1977-09-20	17:53	17:55	8	C0.1	N08W70	889
1977-09-20	18:38	18:42	12	C0.3	N10W71	889

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 889 produced 13 C+ flares between 1977-09-07 and 1977-09-20.