Sunspot region AR12315

Number of
sunspots
Size Class Magn. Class Spot Location
2015/03/29 2 10 CAO S19W16
2015/03/30 8 30 DRO S20W29
2015/03/31 5 30 CRO S20W41
2015/04/01 3 20 CAO S21W53
2015/04/02 6 10 BXO S21W66
C
2

The top 2 solar flares from sunspot region 12315

Start Maximum End
1C2.182015/03/2911:2811:3211:36
2C1.152015/04/0213:4213:4713:53

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Last X-flare2024/11/06X2.39
Last M-flare2024/11/11M1.3
Last geomagnetic storm2024/11/10Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
October 2024166.4 +25
November 2024175.7 +9.3
Last 30 days166.1 +21.7

This day in history*

Solar flares
12012M8.59
22012M4.14
32005M3.59
42012M3.56
52003M2.36
DstG
11960-339G5
21998-131G2
31989-121G1
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51979-92G1
*since 1994

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