Sunspot region AR12257

Number of
sunspots
Size Class Magn. Class Spot Location
2015/01/07 3 40 DAO N05E12
2015/01/08 13 100 DAI N05W01
2015/01/09 19 170 DAI N05W16
2015/01/10 28 480 DKI N07W29
2015/01/11 35 470 EKC N07W42
2015/01/12 24 450 EKC N07W55
2015/01/13 16 380 EKC N07W68
2015/01/14 6 240 EAC N07W81
2015/01/15 3 120 DAO N07W93
2015/01/16 3 120 DAO N07W0*
CM
176

The top 10 solar flares from sunspot region 12257

Start Maximum End
1M8.12015/01/1304:1304:2404:38
2M7.092015/01/1304:4604:5805:10
3M3.192015/01/1412:3012:5813:08
4M1.392015/01/1403:3403:4703:54
5M1.382015/01/0908:0408:1708:34
6M1.112015/01/1404:4404:5605:05
7C7.662015/01/1409:1709:4309:52
8C6.82015/01/1402:2502:3302:40
9C4.852015/01/1108:1409:2410:25
10C4.82015/01/1011:1411:3311:54

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Last X-flare2025/03/28X1.1
Last M-flare2025/04/22M1.3
Last geomagnetic storm2025/04/21Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
March 2025134.2 -20.4
April 2025126.5 -7.7
Last 30 days126.8 -0.8

This day in history*

Solar flares
11998M9.27
22024M3.71
32024M2.53
41999M1.7
52003M1.69
DstG
11960-99G2
21990-98G1
31991-97G3
41983-86G2
51979-75G2
*since 1994

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