Sunspot region AR12378

Number of
sunspots
Size Class Magn. Class Spot Location
2015/07/03 4 40 CSO S15E64
2015/07/04 5 80 DSO S17E56
2015/07/05 4 90 CSO S16E44
2015/07/06 6 70 CSO S17E32
2015/07/07 3 60 HAX S17E18
2015/07/08 3 50 HSX S17E03
2015/07/09 4 50 HSX S16W09
2015/07/10 2 20 HSX S10W23
2015/07/11 3 10 BXO S15W33
2015/07/12 1 10 AXX S16W49
BCM
381

The top 10 solar flares from sunspot region 12378

Start Maximum End
1M2.232015/07/0312:4712:5112:53
2C8.042015/07/0302:5403:0503:09
3C4.92015/07/0309:1009:1909:24
4C2.842015/07/0305:4905:5506:02
5C2.432015/07/0311:1411:2411:32
6C1.862015/07/0320:4420:5120:57
7C1.522015/07/0400:0100:0800:17
8C1.112015/07/0318:1418:2018:27
9C1.052015/07/0311:5611:5912:07
10B9.222015/07/0506:5207:0007:08

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Last X-flare2025/01/04X1.85
Last M-flare2025/02/21M1.4
Last geomagnetic storm2025/02/19Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
January 2025137 -17.5
February 2025151.4 +14.4
Last 30 days149 -14

This day in history*

Solar flares
12024X6.37
22024X1.70
32002M6.4
42024M4.8
52023M2.6
DstG
11994-144G4
21988-130G3
31973-107G2
41979-97G1
51992-97G1
*since 1994

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