The Sunspot Observer - Average annual indices of solar activity - Solar activity in 1997 - December, 1997

Statistics of sunspot activity

December, 1997

Visual indices of solar activity by author's observations

Date	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31	Average	%
W	37		24	17																												26.00	100
Wn	37		24	17																												26.00	100.00
Ws	0		0	0																												0.00	0.00
n	1		1	1																												1.00	100
A	0		0	0																												0.00	0.00
B	0		0	0																												0.00	0.00
C	0		0	0																												0.00	0.00
D	0		0	0																												0.00	0.00
E	1		1	1																												1.00	100.00
F	0		0	0																												0.00	0.00
G	0		0	0																												0.00	0.00
H	0		0	0																												0.00	0.00
I	0		0	0																												0.00	0.00
x	0		0	0																												0.00	0.00
r	0		0	0																												0.00	0.00
s	0		0	0																												0.00	0.00
a	0		0	0																												0.00	0.00
h	0		0	0																												0.00	0.00
k	1		1	1																												1.00	100.00
x	0		0	0																												0.00	0.00
o	0		0	0																												0.00	0.00
i	0		1	1																												0.67	66.67
c	1		0	0																												0.33	33.33
CV	56		47	47																												50.00	100
CVn	56		47	47																												50.00	100.00
CVs	0		0	0																												0.00	0.00
gr	1		1	1																												1.00	100.00
grfp	19		7	7																												11.00	68.75
grf	8		7	0																												5.00	31.25
efp	0		0	0																												0.00	0.00
ef	0		0	0																												0.00	0.00
Cond	2-5-2		3	4-5																												3.50	30.00