The Sunspot Observer - Average annual indices of solar activity NGDC - Solar activity in 2007

Statistics of sunspot activity

Solar activity in 2007

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
W27.5216.399.358.0618.9418.8914.9410.064.982.652.6617.0312.6412.62
Wn8.310.003.400.996.560.001.781.181.930.792.400.392.342.31
Ws19.2116.395.957.0612.3918.8913.168.883.051.860.2616.6510.3010.31
n2.061.280.750.591.131.130.980.810.360.200.200.560.840.84
A0.300.150.210.230.200.160.160.150.080.090.060.000.150.15
B0.120.110.150.080.160.130.040.070.110.040.090.050.100.09
C0.370.200.110.070.290.220.190.150.140.050.000.030.150.15
D0.410.150.050.080.310.180.120.100.020.010.030.320.150.15
E0.010.000.000.000.000.100.170.000.000.000.000.110.030.03
F0.000.000.000.000.000.030.000.000.000.000.000.000.000.00
G0.000.000.000.010.000.040.080.000.000.000.000.000.010.01
H0.280.190.030.080.060.060.040.030.000.000.000.000.060.06
I0.560.490.190.050.100.220.170.330.010.000.010.050.180.18
x0.430.260.350.310.360.280.200.220.190.130.160.050.240.24
r0.150.050.080.030.100.060.070.090.070.020.000.020.060.06
s0.510.530.200.040.110.350.160.250.050.010.010.180.190.20
a0.550.150.080.040.320.260.340.200.050.050.030.150.190.18
h0.220.170.020.020.000.050.060.040.000.000.000.060.050.05
k0.210.120.010.150.240.130.150.020.000.000.000.110.100.10
x1.150.830.440.360.360.430.380.500.090.090.070.050.400.40
o0.580.380.270.220.550.430.340.300.220.100.100.210.310.31
i0.290.070.040.010.110.170.160.010.050.010.030.190.090.09
c0.040.000.000.010.100.100.100.000.000.000.000.110.040.04
CV33.0120.275.578.4518.2318.6118.138.181.920.881.0216.6012.5712.57
CVn3.990.001.310.277.430.001.050.800.720.060.900.231.421.40
CVs29.0220.274.268.1810.8018.6117.077.381.210.820.1216.3711.1511.18