The Sunspot Observer - Average annual indices of solar activity NGDC - December, 1989

Statistics of sunspot activity

December, 1989

Visual indices of solar activity by National Geophysical Data Center

Date12345678910111213141516171819202122232425262728293031Average%
W237.86241.57241.17213.80227.33205.50242.67214.67196.60170.00118.80120.00128.33133.2999.33122.50147.00142.33151.40135.00143.20192.17223.29210.29229.43252.00315.40236.83220.20224.14237.57192.70100
Wn144.14133.43148.67140.20149.50134.83152.00136.67111.00104.3370.0077.2987.5087.4364.3375.1799.00101.3398.6078.6075.8072.3385.4378.2983.8698.50113.6083.3376.2086.57112.14101.9452.90
Ws93.71108.1492.5073.6077.8370.6790.6778.0085.6065.6748.8042.7140.8345.8635.0047.3348.0041.0052.8056.4067.40119.83137.86132.00145.57153.50201.80153.50144.00137.57125.4390.7647.10
n13.5714.0012.6712.0011.8311.0013.3312.1712.209.337.208.298.008.866.838.337.437.338.607.807.8012.0013.4311.0011.5711.5013.6010.509.409.298.4310.30100
A2.861.431.331.801.000.831.672.172.600.671.201.141.502.291.501.501.141.001.400.000.000.830.860.430.860.331.400.330.600.860.711.1711.35
B2.294.433.002.401.170.831.831.671.401.831.001.001.330.861.172.170.570.830.600.801.402.172.431.431.141.171.200.830.600.710.711.4514.08
C2.713.145.003.002.672.002.672.172.403.002.202.431.672.431.001.671.140.831.801.802.203.003.003.142.142.333.801.831.200.711.002.2621.95
D3.432.572.674.205.175.174.333.173.802.501.801.862.171.000.170.673.003.502.202.202.202.502.861.571.291.172.802.833.803.573.002.6826.04
E0.290.290.000.000.330.000.000.000.000.000.000.000.170.710.330.330.140.000.000.000.000.000.570.571.291.331.201.331.201.571.430.424.10
F0.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.290.430.830.800.170.200.000.000.090.85
G0.710.570.330.200.170.170.000.500.200.170.000.000.670.140.670.500.710.671.001.200.200.500.000.861.291.000.200.830.400.431.290.504.88
H0.860.710.170.000.000.170.500.830.800.670.801.000.000.000.170.670.430.170.800.400.601.171.000.860.430.170.200.170.000.000.000.444.30
I0.430.860.170.401.331.832.331.671.000.500.200.860.501.431.830.830.290.330.801.401.201.832.711.862.713.172.002.171.401.430.291.2812.45
x5.145.864.334.202.171.673.503.834.002.502.202.142.833.142.673.671.711.832.000.801.403.003.291.862.001.502.601.171.201.571.432.6225.43
r0.570.290.170.200.000.670.170.500.000.330.400.570.500.861.000.830.570.670.200.000.000.000.290.290.290.330.400.170.000.140.430.353.39
s1.142.862.001.003.003.333.502.502.802.831.401.711.002.431.671.000.570.831.202.001.002.002.712.714.574.834.002.171.601.290.862.1520.83
a3.291.713.504.204.003.504.503.834.602.672.402.863.001.570.501.002.712.003.203.203.005.004.863.862.862.173.603.172.802.862.293.0529.66
h0.140.570.330.200.500.830.831.000.600.830.800.860.500.710.501.000.710.501.000.400.600.170.000.000.430.170.000.170.000.000.290.474.59
k3.292.712.332.202.171.000.830.500.200.170.000.140.170.140.500.831.141.501.001.401.801.832.292.291.432.503.003.673.803.433.141.6616.10
x4.143.001.672.202.332.834.504.674.401.832.203.002.003.713.503.001.861.503.001.801.803.834.573.144.003.673.602.672.002.291.002.8928.10
o7.719.719.338.608.506.507.676.507.206.674.205.005.674.293.005.005.005.175.205.805.407.337.435.715.295.507.605.505.203.574.436.1259.41
i1.431.291.671.200.831.671.171.000.600.830.800.290.330.860.330.330.570.500.400.200.600.831.432.002.142.001.601.501.002.292.711.1110.77
c0.290.000.000.000.170.000.000.000.000.000.000.000.000.000.000.000.000.170.000.000.000.000.000.140.140.330.800.831.201.140.290.181.72
CV224.71216.57189.33185.40228.67203.00192.83166.00152.40131.8393.80107.43101.00102.1480.00116.00144.29152.83157.80158.80156.40174.00197.29190.14201.43224.17252.00248.17244.80232.71221.43175.72100
CVn149.57159.14143.67147.80176.17150.33130.50117.67106.00105.5074.6083.2974.6781.8659.6770.3390.0090.5096.8081.2083.6084.1796.7177.5767.4373.8378.0085.0079.6092.00103.86100.3657.11
CVs75.1457.4345.6737.6052.5052.6762.3348.3346.4026.3319.2024.1426.3320.2920.3345.6754.2962.3361.0077.6072.8089.83100.57112.57134.00150.33174.00163.17165.20140.71117.5775.3742.89