Viewing archive of Sunday, 21 May 2000

Sunspot numberNew regionsBackground fluxMaximum fluxC
271 -110 -2C1.9C8.226

Solar flares

RegionStartMaximumEnd
9011C3.7 00:0700:1200:19
8998C2.5 06:3006:3406:38
-C2.4 08:0808:1208:16
8996C8.2 10:1910:2310:26
9004C1.9 16:3816:4416:51
8996C2.1 19:2119:4319:47

<< 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!

12%

Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2020/02/19Kp5 (G1)
Number of spotless days in 2020:72
Last spotless day:2020/03/30

This day in history*

Solar flares
12002M6.1
21999M5.4
32001M2.0
42003M1.9
52001M1.6
ApG
1199459G3
2200328G1
3200526G2
4200123G1
5200022G1
*since 1994

Social networks