The Sunspot Observer - Average annual indices of solar activity NGDC - Solar activity in 1988

Statistics of sunspot activity

Solar activity in 1988

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
N31293130313031313031303130.5030.50
W61.6041.8083.7296.3072.66118.27123.80127.89134.70135.74139.85208.45112.33112.06
Wn18.3530.1043.3251.6523.4955.6862.0388.9574.3879.0095.01120.8261.9961.90
Ws43.2411.7140.4044.6549.1762.5961.7738.9360.3256.7444.8487.6350.3450.17
n3.753.054.165.254.186.065.766.587.997.608.0510.416.096.07
A0.570.740.580.680.830.660.790.841.440.971.060.910.840.84
B0.840.500.560.530.900.750.930.781.911.151.111.100.920.92
C0.850.670.770.990.771.160.731.131.591.341.812.121.161.16
D0.550.351.320.970.510.991.061.711.400.951.072.641.131.13
E0.270.000.310.160.210.600.640.340.410.310.461.020.400.39
F0.030.000.130.340.150.250.320.230.050.300.350.280.210.20
G0.240.250.120.510.050.320.380.520.320.500.531.050.400.40
H0.030.110.080.040.050.290.130.150.080.120.100.060.110.10
I0.380.440.301.040.701.030.770.880.801.971.561.230.930.93
x1.401.231.141.211.741.411.721.623.362.122.172.021.761.76
r0.320.190.350.290.430.260.330.280.640.420.580.680.400.40
s1.030.901.042.031.111.691.591.851.782.352.773.111.771.77
a0.610.291.121.230.581.540.711.361.511.321.392.891.221.21
h0.140.300.140.170.090.630.390.420.150.190.340.360.280.28
k0.240.130.370.320.240.541.011.050.551.210.801.350.660.65
x0.971.290.961.761.591.991.691.872.323.062.712.201.871.87
o2.171.682.082.442.042.732.583.434.803.594.145.923.133.13
i0.610.091.061.050.391.021.191.220.830.871.132.100.970.96
c0.000.000.070.010.170.320.300.060.040.080.070.190.110.11
CV48.5038.2167.5879.1746.80108.74111.35123.1092.77116.55119.25189.6295.3995.14
CVn10.7534.2830.7846.3113.3751.9157.4275.3840.6860.5570.51117.4450.8650.78
CVs37.763.9336.8032.8533.4356.8353.9347.7252.0956.0048.7372.1744.5444.35