Viewing archive of Thursday, 23 May 2013

Sunspot numberNew regionsBackground fluxMaximum fluxC
117 100B6.5C3.92876

Solar flares

RegionStartMaximumEnd
1755C1.4 09:0909:1409:18
1755C1.3 12:2612:2912:31
1756C3.9 14:4314:5015:00
1756C2.6 15:2515:3315:49
-C1.8 18:2018:2718:39
1756C3.4 18:4118:4718:54

<< 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