The Sunspot Observer - Average annual indices of solar activity - Solar activity in 2011 - December, 2011

Statistics of sunspot activity

December, 2011

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							109		127					97				100														108.25	100
Wn							72		83					71				42														67.00	61.89
Ws							37		44					26				58														41.25	38.11
n							8		9					7				7														7.75	100
A							1		0					2				0														0.75	9.68
B							2		1					1				2														1.50	19.35
C							1		3					0				1														1.25	16.13
D							0		3					2				1														1.50	19.35
E							1		0					0				0														0.25	3.23
F							0		0					0				0														0.00	0.00
G							1		0					0				0														0.25	3.23
H							0		1					0				1														0.50	6.45
I							2		1					2				2														1.75	22.58
x							3		1					3				2														2.25	29.03
r							1		0					1				2														4.00	51.61
s							3		4					3				1														2.75	35.48
a							0		3					0				2														1.25	16.13
h							1		1					0				0														0.50	6.45
k							0		0					0				0														0.00	0.00
x							3		2					4				3														3.00	38.71
o							4		7					2				3														4.00	51.61
i							1		0					1				1														0.75	9.68
c							0		0					0				0														0.00	0.00
CV							109		139					65				52														91.25	100
CVn							54		81					36				11														45.50	49.86
CVs							55		58					29				41														45.75	50.14
gr							5		8					5				7														6.25	80.65
grfp							11		16					9				12														12.00	41.03
grf							15		20					16				18														17.25	58.97
efp							2		1					1				0														1.00	12.90
ef							1		0					1				0														0.50	6.45
Cond							3		2					4				3														3.00	40.00