The Sunspot Observer - Average annual indices of solar activity - Solar activity in 2005

Statistics of sunspot activity

Solar activity in 2005

Visual indices of solar activity by author's observations

 
Average by
month
I
II
III
IV
V
VI
VII
VIII
IX
X
XI
XII
days
months
N121716211642423262012516.3316.33
W44.8335.0629.3828.2474.3137.0048.7556.9635.5811.9027.8353.6039.6940.29
Wn21.756.3511.196.1017.3110.5029.8832.229.692.350.0013.0014.3713.36
Ws23.0828.7118.1922.1457.0026.5018.8824.7425.889.5527.8340.6025.3226.93
n2.502.531.691.953.442.252.503.041.500.701.333.002.142.20
A0.170.180.060.000.130.000.080.040.080.000.000.000.070.06
B0.170.060.000.050.060.000.080.040.040.050.000.000.050.05
C0.080.350.250.190.440.250.290.260.380.150.080.400.270.26
D0.580.410.560.711.940.500.921.350.190.250.670.800.740.74
E0.250.000.190.100.500.250.290.000.270.050.080.400.180.20
F0.080.000.000.000.000.000.000.000.040.000.250.000.030.03
G0.170.000.250.000.000.000.250.040.040.000.080.000.080.07
H0.750.820.250.240.190.750.130.520.190.000.080.800.320.39
I0.250.710.130.670.190.500.460.780.270.200.080.600.410.40
x0.330.240.060.050.190.000.170.090.120.050.000.000.120.11
r0.080.290.130.190.380.000.210.570.190.150.420.600.270.27
s0.920.590.130.950.190.000.790.350.310.100.171.800.480.52
a0.920.881.130.571.631.250.831.570.380.400.420.400.860.87
h0.000.180.130.050.630.250.080.130.000.000.080.000.120.13
k0.250.350.130.140.440.750.420.350.500.000.250.200.300.32
x1.171.710.440.900.501.250.671.350.540.200.171.400.800.86
o0.670.710.880.711.250.000.920.910.460.300.500.400.700.64
i0.420.120.310.191.131.000.630.520.230.200.671.000.450.54
c0.250.000.060.140.560.000.290.260.270.000.000.200.190.17
CV42.1738.2933.5033.6793.0057.0055.0054.7434.158.9029.8352.0042.7544.35
CVn25.173.949.816.8130.9413.5033.3822.8710.001.550.0016.6014.8914.55
CVs17.0034.3523.6926.8662.0643.5021.6331.8724.157.3529.8335.4027.8629.81
gr1.671.821.501.193.252.002.132.611.350.601.172.201.751.79
grfp12.005.477.695.6723.448.0015.2116.4312.542.758.2513.8011.1110.94
grf7.003.534.632.2916.946.258.1710.097.882.056.089.006.916.99
efp0.750.530.130.760.060.250.290.430.120.100.170.800.340.37
ef0.080.180.060.000.130.000.080.000.040.000.000.000.050.05
Cond1.831.411.942.002.061.751.331.701.811.702.502.201.801.85