The Sunspot Observer - Average annual indices of solar activity - Solar activity in 2017 - September, 2017

Statistics of sunspot activity

September, 2017

Visual indices of solar activity by author's observations

Date010203040506070809101112131415161718192021222324252627282930Average%
W6855            111313 1222          27.71100
Wn4331            111313 1211          19.1469.07
Ws2524            000 011          8.5730.93
n43            111 12          1.86100
A00            000 00          0.000.00
B00            000 00          0.000.00
C11            000 00          0.2915.38
D10            000 00          0.147.69
E00            000 00          0.000.00
F11            000 00          0.2915.38
G00            000 00          0.000.00
H00            000 00          0.000.00
I11            111 12          1.1461.54
x00            000 00          0.000.00
r11            000 00          0.2915.38
s11            111 12          1.1461.54
a10            000 00          0.147.69
h11            000 00          0.2915.38
k00            000 00          0.000.00
x11            111 12          1.1461.54
o21            000 00          0.4323.08
i10            000 00          0.147.69
c01            000 00          0.147.69
CV8875            101010 1020          31.86100
CVn7360            101010 1010          26.1482.06
CVs1515            000 010          5.7217.94
gr32            011 10          1.1461.54
grfp1513            022 10          4.7155.93
grf1211            011 10          3.7144.07
efp11            100 02          0.7138.46
ef00            000 00          0.000.00
Cond23            324 33          2.8642.86