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Sunspot region AR11711

Number of
sunspots		 Size Class Magn. Class Spot Location
2013/03/30 4 210 CAI S17E77
2013/03/31 4 420 CKI S17E62
2013/04/01 6 480 CKI S20E52
2013/04/02 7 460 DKO S17E36
2013/04/03 15 560 CKO S17E24
2013/04/04 19 580 CKO S19E10
2013/04/05 6 530 CKO S15W02
2013/04/06 5 440 DHO S17W16
2013/04/07 7 400 CKO S19W28
2013/04/08 5 400 CKO S16W42
2013/04/09 2 350 HHX S17W55
2013/04/10 2 360 CKO S17W67
2013/04/11 2 230 HAX S16W82
2013/04/12 1 100 HAX S16W95
2013/04/13 1 100 HAX S16W0*
BC
23

The top 5 solar flares from sunspot region 11711

Start Maximum End
1C2.522013/04/0318:3418:4518:59
2C2.12013/04/1100:1900:2800:35
3C1.142013/03/3102:4702:5102:53
4B8.282013/04/0503:4803:5203:54
5B8.272013/04/0311:1111:1611:18
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AR4420 14Coronal Holes 42/44 98Incoming & Unnumbered Active Regions 278Current Farside Activity 460AR potential 4420 (not officially named yet) 5
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Space weather facts

Last X-flare2026/03/30X1.5
Last M-flare2026/04/09M1.0
Last geomagnetic storm2026/04/20Kp5 (G1)
Spotless days
Last 365 days3 days
20263 days (3%)
Last spotless day2026/02/24
Monthly mean Sunspot Number
March 202685.9 +7.7
April 202678.7 -7.2
Last 30 days91.5 +25.1

This day in history*

Solar flares
12001M4.66
22022M3.4
32024M2.81
42011M2.64
52004M1.78
DstG
11970-137G3
21988-109G1
32001-102G2
41979-99G2
51997-93G1
*since 1994

Aurora on this day in history

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