Sunspot region AR8507

Number of
sunspots
Size Class Magn. Class Spot Location
1999/04/04 5 10 BXO N12E58
1999/04/05 6 10 BXO N11E45
1999/04/06 11 50 CSO N12E32
1999/04/07 11 30 CSO N12E18
1999/04/08 14 80 DAO N11E05
1999/04/09 11 70 DSO N12W10
1999/04/10 5 50 DSO N11W23
1999/04/11 6 20 DRO N11W37
1999/04/12 4 10 BXO N11W49
C
4

The top 4 solar flares from sunspot region 8507

Start Maximum End
1C2.771999/04/0314:5215:0115:09
2C1.181999/04/0318:1218:1918:40
3C1.091999/04/0311:3711:4211:48
4C1.081999/04/0620:3520:4020:42

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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
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52003M2.36
DstG
11960-339G5
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*since 1994

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