Sunspot Observation
								Nayoro Observatory
								128mm Refractor  Canon EOS7D　Herschel Prism+G540nm Filter
												Observer  Fumitake Watanabe
	May,2021
	Date Time(UT)				North			South			Total		Seeing	memo
	Day	h	m	g	f	R	g	f	R	g	f	R
	1
	2
	3
	4	07	46	0	0	0	0	0	0	0	0	0	1
	5
	6	03	54	0	0	0	0	0	0	0	0	0	3	(休館日キュウカンビ)
	7	00	27	0	0	0	0	0	0	0	0	0	2	AM(休館日キュウカンビ)
	8
	9
	10
	11	08	32	1	6	16	2	2	22	3	8	38	1
	12	12	19	1	7	17	1	1	11	2	8	28	2
	13	03	34	1	6	16	1	1	11	2	7	27	2
	14	05	44	1	4	14	1	1	11	2	5	25	2
	15
	16
	17
	18	03	23	3	3	33	0	0	0	3	3	33	3
	19	03	24	3	7	37	0	0	0	3	7	37	5
	20	00	50	1	2	12	0	0	0	1	2	12	2	AM(休日キュウジツ)
	21
	22
	23
	24
	25	05	08	3	13	43	0	0	0	3	13	43	1	(休館日キュウカンビ)
	26	03	36	2	17	37	0	0	0	2	17	37	2
	27
	28
	29
	30
	31
		Total		16	65	225	5	5	55	21	70	280		R=k(10g+f)
		Mean				18.8			4.6			23.3		k=1
		obs day		12