Sunspot region AR11678

Number of
sunspots
Size Class Magn. Class Spot Location
2013/02/19 6 30 DRO N10W26
2013/02/20 14 130 DAI N10W40
2013/02/21 13 360 DKC N11W54
2013/02/22 11 470 DKC N11W67
2013/02/23 4 380 DKO N10W80
2013/02/24 4 350 DKO N08W93
BCM
5191

The top 10 solar flares from sunspot region 11678

Start Maximum End
1M1.22013/02/2011:0811:1111:13
2C6.852013/02/2315:5616:0916:20
3C4.262013/02/2014:5214:5614:58
4C4.152013/02/2318:4518:5619:09
5C3.672013/02/2104:5605:0505:17
6C3.112013/02/1910:0910:5111:26
7C2.912013/02/2104:0104:0904:16
8C2.82013/02/2103:0703:1003:12
9C2.442013/02/2021:5021:5822:12
10C1.472013/02/2212:1412:2212:33

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Space weather facts

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 2026114.3 +28.4
Last 30 days102.4 +48.5

This day in history*

Solar flares
12001X3.14
22002X1.17
32023M2.83
42002M2.34
52000M1.23
DstG
11990-281G4
21982-137G3
31957-124G3
41959-122G4
51960-81G3
*since 1994

Aurora on this day in history

Discover more observations in our archive!

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