Viewing archive of Sunday, 23 September 2001

Sunspot numberNew regionsBackground fluxCM
275 -181 -1C2.271

Solar flares

RegionStartMaximumEnd
9622C4.4 01:0201:0601:08
9628C3.2 09:5710:0210:08
9632M1.1 11:3111:3711:43
9632C3.4 13:4913:5914:05
9632C6.5 14:1714:2614:39
9628C2.5 15:3915:4415:58
-C2.0 16:4516:4816:54
9632C3.3 23:1823:2323:27

<< 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!

1%

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:2019/01/05Kp5 (G1)
Number of spotless days in 2019:11
Current stretch spotless days:12

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