Viewing archive of Thursday, 21 March 2013

Sunspot numberNew regionsBackground fluxMaximum fluxCM
60 -101B2.8M1.6241

Solar flares

RegionStartMaximumEnd
1692B6.7 07:2007:2507:28
1692B4.2 10:3010:3410:39
1692B5.7 11:3711:4311:49
1692C1 15:2515:3115:45
1692B6.4 16:4616:5717:07
1692C3.5 18:1018:2218:28
1692C1.9 20:2020:2920:40
-C1.1 21:1721:2121:24
1692M1.6 21:4222:0422:36

<< 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%

Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/10/26Kp5 (G1)
Number of spotless days in 2019:264
Current stretch spotless days:37

This day in history*

Solar flares
12014C8.6
22014C8.1
32001C6.8
42001C6.3
52014C6.2
ApG
1200329G1
2201624G1
3200018
4201414
5199914
*since 1994

Social networks