Viewing archive of Thursday, 17 February 2011

Sunspot numberNew regionsBackground fluxMaximum fluxC
510B5.8C6.144312

Solar flares

RegionStartMaximumEnd
1158C6.1 01:4101:4601:50
1158C2.3 02:4603:0803:21
1158C1.5 04:0904:1504:22
1158C1.0 05:3305:3605:40
1158C1.2 06:4406:4706:51
1158C1.2 08:0908:1308:18
1158C1.9 09:2409:3009:35
1158C2.6 10:2510:2810:32
-C2.2 10:3810:4410:49
1158C2.4 12:3312:3612:39
1158C1.3 15:4915:5416:04
1158C1.1 21:3021:3521:40

<< 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!

100%

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/09/02Kp5 (G1)
Number of spotless days in 2019:186
Current stretch spotless days:17

This day in history*

Solar flares
12000M5.1
22004M1.9
31999C9.6
41997C8.6
52001C7.5
ApG
1200339G1
2200030G2
3201420G1
4201516G1
5200215G1
*since 1994

Social networks