Viewing archive of Friday, 20 September 2002

Sunspot numberNew regionsBackground fluxMaximum fluxCM
237 312 1B8.2M1.8652

Solar flares

RegionStartMaximumEnd
0119C2.4 01:5602:0202:06
0126M1.5 05:0805:1205:17
0115C1.9 08:2608:3508:39
0126M1.8 09:2109:2809:33
0126C2.1 11:0811:1411:22
-C2.1 13:2313:3113:44
-C2.5 23:2623:3423:48

<< 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:2019/09/28Kp5 (G1)
Number of spotless days in 2019:214
Current stretch spotless days:16

This day in history*

Solar flares
11998M2.4
22014M1.6
32001C8.5
42013C8.4
52014C6.7
ApG
1199532G3
2199627G1
3200325G1
4201519G1
5201415
*since 1994

Social networks