Viewing archive of Sunday, 21 January 2001

Sunspot numberNew regionsBackground fluxMaximum fluxCM
108 173 2B7.3M1.1131

Solar flares

RegionStartMaximumEnd
-B7.3 08:0708:1408:21
-C1.7 12:1912:2312:27
-B7.8 13:4613:5014:03
-B6.9 17:2517:2917:34
9313C3.0 19:1719:2819:39
9311C4.5 21:1121:1621:25
9311M1.1 23:0823:1223:19

<< 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 2019:210
Current stretch spotless days:12

This day in history*

Solar flares
11999X1.8
22014M2.2
32000M1.1
42014M1.1
52000C8.7
ApG
1200366G3
2200045G2
3199931G1
4201730G1
5200623
*since 1994

Social networks