The Sunspot Observer - Average annual indices of solar activity - Solar activity in 2021 - August, 2021

Statistics of sunspot activity

August, 2021

Visual indices of solar activity by author's observations

Date	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31	Average	%
W		13	16			24		0		0		23	12	0	25		13		42	13						35	79		76	57		26.75	100
Wn		0	0			12		0		0		11	12	0	25		13		42	13						12	30		12	11		12.06	45.09
Ws		13	16			12		0		0		12	0	0	0		0		0	0						23	49		64	46		14.69	54.91
n		1	1			2		0		0		2	1	0	2		1		3	1						2	4		3	2		1.56	100
A		0	0			1		0		0		1	0	0	1		0		0	0						0	0		0	0		0.19	12.00
B		1	0			1		0		0		1	1	0	1		0		2	1						0	2		1	0		0.69	44.00
C		0	1			0		0		0		0	0	0	0		0		1	0						0	1		1	0		0.25	16.00
D		0	0			0		0		0		0	0	0	0		1		0	0						1	0		0	0		0.13	8.00
E		0	0			0		0		0		0	0	0	0		0		0	0						0	1		1	1		0.19	12.00
F		0	0			0		0		0		0	0	0	0		0		0	0						0	0		0	0		0.00	0.00
G		0	0			0		0		0		0	0	0	0		0		0	0						0	0		0	0		0.00	0.00
H		0	0			0		0		0		0	0	0	0		0		0	0						1	0		0	0		0.06	4.00
I		0	0			0		0		0		0	0	0	0		0		0	0						0	0		0	1		0.06	4.00
x		1	0			2		0		0		2	1	0	2		0		2	1						0	2		1	0		0.88	56.00
r		0	0			0		0		0		0	0	0	0		1		1	0						0	0		0	1		0.19	12.00
s		0	0			0		0		0		0	0	0	0		0		0	0						1	1		0	0		0.13	8.00
a		0	1			0		0		0		0	0	0	0		0		0	0						1	1		1	0		0.25	16.00
h		0	0			0		0		0		0	0	0	0		0		0	0						0	0		0	0		0.00	0.00
k		0	0			0		0		0		0	0	0	0		0		0	0						0	0		1	1		0.13	8.00
x		0	0			1		0		0		1	0	0	1		0		0	0						1	0		0	1		0.31	20.00
o		1	0			1		0		0		1	1	0	1		0		3	1						0	2		2	0		0.81	52.00
i		0	1			0		0		0		0	0	0	0		1		0	0						1	2		0	0		0.31	20.00
c		0	0			0		0		0		0	0	0	0		0		0	0						0	0		1	1		0.13	8.00
CV		2	9			3		0		0		3	2	0	3		16		9	3						32	36		66	60		15.25	100
CVn		0	0			2		0		0		1	2	0	3		16		9	3						10	11		8	4		4.31	28.28
CVs		2	9			1		0		0		2	0	0	0		0		0	0						22	25		58	56		10.94	71.72
gr		1	1			2		0		0		1	1	0	1		1		3	1						2	4		3	1		1.38	88.00
grfp		0	3			0		0		0		0	0	0	0		2		2	0						6	11		28	22		4.63	42.29
grf		3	3			4		0		0		2	2	0	4		1		10	3						9	28		18	14		6.31	57.71
efp		0	0			0		0		0		0	0	0	0		0		0	0						0	0		0	1		0.06	4.00
ef		0	0			0		0		0		1	0	0	1		0		0	0						0	0		0	0		0.13	8.00
Cond		3	3			2		3		2		3	2	3	4		3		2	3						3	2		2	1		2.56	48.75