Viewing archive of Friday, 21 January 2011

Sunspot numberNew regionsBackground fluxMaximum fluxC
42 101 1B1.1C3.337

Solar flares

RegionStartMaximumEnd
1149B2.7 02:3202:3802:50
1149C3.3 04:1204:1704:20
1149B9.5 06:5007:0107:10
1149B4.5 09:5109:5710:12
1149B4.5 10:4410:5511:00
1149B3.9 11:5011:5311:55
1149C1 12:0512:1512:20
1149C1.4 14:2414:3814:49
1147C1.1 15:1715:2115:25
1149C2.2 16:3817:1217:17
-C1.1 18:5719:1019:30
1149C1.3 20:1420:3120:39
1149B3.2 23:2623:3623:40

<< Go to daily overview page

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!

0%

Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/10/26Kp5 (G1)
Number of spotless days in 2020:10
Current stretch spotless days:8

This day in history*

Solar flares
12005M4.6
22000M3.9
31999M2.0
42012M1.7
52005M1.6
ApG
1200584G4
2199537G2
3199424G1
4200718
5200418
*since 1994

Social networks