Viewing archive of Saturday, 27 May 2017

Sunspot numberNew regionsBackground fluxMaximum flux
21 -10B1.3B9.28

Solar flares

RegionStartMaximumEnd
2659B2.2 08:4808:5108:57
2659B3.1 10:2210:3810:53
2659B9.2 17:4718:3019:04
-B4.4 21:1821:2421:28
2659B7.2 22:0822:1122:14

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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 2019:128
Current stretch spotless days:10

This day in history*

Solar flares
12004X1.0
22002M8.5
32004M2.5
42000M2.4
52004M2.0
ApG
1201726G2
2199523G1
3200522G1
4200421G2
5200220G1
*since 1994

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