Sunspot region AR8731

Number of
sunspots
Size Class Magn. Class Spot Location
1999/10/12 6 120 EAO N10E62
1999/10/13 14 340 EKO N11E51
1999/10/14 38 620 EKO N11E37
1999/10/15 45 790 EKC N19E24
1999/10/16 27 850 FKC N12E10
1999/10/17 62 1000 FKC N12W03
1999/10/18 54 1220 FKC N13W19
1999/10/19 35 980 FKC N19W27
1999/10/20 63 640 FKC N13W44
1999/10/21 45 440 EKI N14W55
1999/10/22 28 320 EAI N12W67
1999/10/23 12 160 ESI N12W79
CMX
911

The top 10 solar flares from sunspot region 8731

Start Maximum End
1X2.631999/10/1408:5409:0009:03
2M1.061999/10/1500:5801:1501:31
3C8.211999/10/1402:2802:3802:50
4C6.11999/10/1403:1903:2403:30
5C5.371999/10/1512:1812:2712:39
6C4.361999/10/1521:3221:3821:41
7C3.961999/10/1817:3317:3917:45
8C3.871999/10/1422:2722:3122:34
9C3.661999/10/1522:2622:3122:35
10C2.661999/10/1207:4508:5409:52

Active geomagnetic conditions

Observed Kp: 4
Threshold reached: 02:40 UTC

Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future

Gillam, MB, Iqaluit, NU, Yellowknife, NT
Nuuk
Utqiagvik, AK
Reykjavik
The strength of the interplanetary magnetic field is moderate (17.67nT), the direction is moderately South (-10.35nT).

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Latest alerts

02:45 UTC - Geomagnetic activity

Active geomagnetic conditions (Kp4) Threshold Reached: 02:30 UTC

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Friday, 31 January 2025
20:42 UTC - Solar flare

Moderate M1.84 flare

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20:27 UTC - Radio Blackout

Minor R1 radio blackout in progress (≥M1 - current: M1.84)


14:30 UTC - Type II Radio Emission

Begin Time: 31/01/2025 13:56 UTC Estimated Velocity: 673km/sec.


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Space weather facts

Last X-flare2025/01/04X1.85
Last M-flare2025/01/31M1.8
Last geomagnetic storm2025/01/04Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
December 2024154.5 +2
Last 30 days144.5 +6.7

This day in history*

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*since 1994

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