Sunspot region AR11704

Number of
sunspots
Size Class Magn. Class Spot Location
2013/03/23 1 60 HSX N15E74
2013/03/24 1 80 HAX N16E60
2013/03/25 4 70 CAO N16E45
2013/03/26 4 70 HAX N16E31
2013/03/27 2 80 HAX N15E18
2013/03/28 1 90 HAX N15E06
2013/03/29 3 90 CAO N15W08
2013/03/30 3 70 HAX N15W21
2013/03/31 2 70 HAX N15W34
2013/04/01 4 80 DAO N14W47
2013/04/02 5 80 CAO N16W61
2013/04/03 3 60 HSX N15W74
2013/04/04 2 30 HSX N15W89
2013/04/05 2 30 HSX N15W0*
BC
81

The top 9 solar flares from sunspot region 11704

Start Maximum End
1C1.032013/04/0123:4323:4923:58
2B9.462013/03/2302:0402:0902:14
3B8.532013/04/0413:0313:0613:08
4B7.442013/03/2301:4901:5802:02
5B6.762013/04/0210:1510:1910:24
6B6.072013/03/2517:4317:4817:54
7B5.562013/03/2522:4800:4802:30
8B3.482013/03/2513:0413:0813:13
9B2.562013/03/2717:2317:3017:37

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Last X-flare2026/03/30X1.5
Last M-flare2026/04/09M1.0
Last geomagnetic storm2026/04/03Kp7- (G3)
Spotless days
Last 365 days3 days
20263 days (3%)
Last spotless day2026/02/24
Monthly mean Sunspot Number
March 202685.9 +7.7
April 202685.9 -0
Last 30 days92.1 +30.2

This day in history*

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*since 1994

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