The Sunspot Observer - Average annual indices of solar activity - Solar activity in 2012 - September, 2012

Statistics of sunspot activity

September, 2012

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	Average	%
W			195	185										49				65	83	116	88		82				147		87		109.70	100
Wn			86	91										13				26	29	47	31		41				111		50		52.50	47.86
Ws			109	94										36				39	54	69	57		41				36		37		57.20	52.14
n			8	10										3				5	6	7	6		5				11		6		6.70	100
A			0	1										0				1	0	0	0		0				2		1		0.50	7.46
B			5	4										0				1	1	2	2		2				5		0		2.20	32.84
C			0	0										1				2	2	1	0		0				2		2		1.00	14.93
D			1	2										0				1	1	3	2		2				0		1		1.30	19.40
E			2	2										1				0	0	0	0		0				0		0		0.50	7.46
F			0	0										0				0	0	0	0		0				0		0		0.00	0.00
G			0	0										0				0	0	1	1		1				0		0		0.30	4.48
H			0	0										0				0	0	0	0		0				2		1		0.30	4.48
I			0	1										1				0	2	0	1		0				0		1		0.60	8.96
x			5	5										0				2	1	2	2		2				7		1		2.70	40.30
r			0	0										0				0	0	0	0		1				1		0		0.20	2.99
s			1	3										2				1	2	1	1		0				3		2		1.60	23.88
a			2	2										1				2	3	3	2		1				0		2		1.80	26.87
h			0	0										0				0	0	0	0		0				0		1		0.10	1.49
k			0	0										0				0	0	1	1		1				0		0		0.30	4.48
x			0	2										1				1	2	0	1		0				4		3		1.40	20.90
o			4	5										1				4	4	6	5		4				7		1		4.10	61.19
i			4	3										1				0	0	1	0		1				0		2		1.20	17.91
c			0	0										0				0	0	0	0		0				0		0		0.00	0.00
CV			85	116										44				41	57	117	97		83				48		93		78.10	100
CVn			28	63										10				21	21	49	47		66				26		41		37.20	47.63
CVs			57	53										34				20	36	68	50		17				22		52		40.90	52.37
gr			8	9										3				4	5	7	5		5				9		4		5.90	88.06
grfp			43	35										8				5	9	16	10		11				6		6		14.90	35.56
grf			72	49										11				9	13	30	17		21				29		19		27.00	64.44
efp			0	1										0				0	1	0	1		0				1		1		0.50	7.46
ef			0	0										0				1	0	0	0		0				1		1		0.30	4.48
Cond			3	2										4				3	2	1	3		3				2		3		2.60	48.00