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

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

Vorkuta

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

Norilsk
The solar wind speed is currently moderately high (662.1 km/sec.)

Latest news

Support SpaceWeatherLive.com!

A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!

Donate SpaceWeatherLive Pro
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

02:00 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 01:50 UTC

alert


Saturday, 5 April 2025
20:30 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 20:20 UTC

alert


20:24 UTC - Solar flare

Moderate M1.05 flare

alert


20:09 UTC - Radio Blackout

Minor R1 radio blackout in progress (≥M1 - current: M1.05)


10:00 UTC - Hemispheric Power Index

The OVATION model predicts the Hemispheric Power Index to reach 78GW at 10:32 UTC


Get instant alerts!

Space weather facts

Last X-flare2025/03/28X1.1
Last M-flare2025/04/05M1.0
Last geomagnetic storm2025/04/05Kp6- (G2)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
March 2025134.2 -20.4
April 2025150.4 +16.2
Last 30 days131.6 -13.4

This day in history*

Solar flares
12001X8.08
22004M3.44
32023M3.01
42000M2.7
52006M2.02
DstG
12000-291G4
21977-105G3
31988-100G2
41984-86
52010-81G1
*since 1994

Social networks