The Sunspot Observer - Average annual indices of solar activity NGDC - Solar activity in 1989

Statistics of sunspot activity

Solar activity in 1989

Visual indices of solar activity by National Geophysical Data Center

 
Average by
month
I
II
III
IV
V
VI
VII
VIII
IX
X
XI
XII
days
months
N31283130313031313031303130.4230.42
W182.72187.66161.52155.06185.13256.00170.99199.70201.02192.73212.01192.70191.31191.44
Wn82.1099.4297.7370.3988.83127.3484.8199.75124.0194.51139.83101.94100.74100.89
Ws100.6288.2363.7984.6696.30128.6686.1899.9577.0198.2272.1790.7690.5790.55
n8.249.178.368.209.7012.299.4210.739.2110.759.6410.309.679.67
A0.701.291.331.071.131.821.221.481.211.391.021.171.241.24
B0.961.531.291.411.341.561.491.721.491.791.521.451.461.46
C1.691.801.612.012.392.072.192.691.672.581.812.262.072.06
D1.021.581.401.251.772.032.161.741.512.272.322.681.811.81
E0.780.640.680.550.710.760.250.630.910.360.710.420.620.62
F1.030.800.310.440.230.770.010.210.630.220.440.090.420.43
G0.800.530.340.550.441.110.430.510.850.520.820.500.610.62
H0.090.020.060.130.060.080.200.220.050.150.080.440.140.13
I1.170.981.340.781.622.071.471.520.891.450.921.281.301.29
x1.662.832.622.482.473.382.713.202.703.182.542.622.692.70
r0.580.740.590.450.460.410.540.480.570.560.250.350.490.50
s1.822.021.731.642.252.692.302.581.302.361.832.152.062.05
a2.482.212.201.943.063.612.902.542.783.412.873.062.762.76
h0.230.060.130.550.390.350.340.390.120.310.320.470.310.30
k1.481.321.091.141.071.850.631.531.750.921.841.661.351.36
x1.972.292.731.982.803.982.893.222.163.002.022.892.672.66
o4.054.984.064.805.135.945.266.144.896.625.736.125.315.31
i1.681.671.111.391.601.921.240.871.740.931.721.111.411.41
c0.550.230.450.030.160.460.030.500.430.200.180.180.280.28
CV157.91142.41123.67136.57147.34205.46125.40166.31160.71146.78178.88175.72155.54155.60
CVn75.2581.4682.1156.3670.8689.5952.2569.4592.5569.62128.50100.3680.5780.70
CVs82.6660.9541.5680.2176.48115.8773.1596.8668.1677.1750.3875.3774.9774.90