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!

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:2019/07/10Kp5 (G1)
Number of spotless days in 2019:131
Current stretch spotless days:13

This day in history*

Solar flares
12002X3.3
22004M8.6
32000M5.0
42000M3.6
52002C9.6
ApG
1200036G2
2201622G1
3200520G1
4201118
5200218
*since 1994

Social networks