Sunspot Observation
								Nayoro Observatory
								128mm Refractor  Canon EOS7D　Herschel Prism+G540nm Filter
												Observer  Fumitake Watanabe
	Apr,2021
	Date Time(UT)				North			South			Total		Seeing	memo
	Day	h	m	g	f	R	g	f	R	g	f	R
	1	02	02	0	0	0	0	0	0	0	0	0	2	AM
	2	00	29	0	0	0	0	0	0	0	0	0	4	AM(休日キュウジツ)
	3
	4
	5
	6
	7	00	40	0	0	0	0	0	0	0	0	0	3	AM
	8	03	30	0	0	0	0	0	0	0	0	0	2
	9
	10	03	19	0	0	0	0	0	0	0	0	0	2
	11	03	24	0	0	0	1	1	11	1	1	11	3
	12
	13
	14
	15	06	18	0	0	0	1	10	20	1	10	20	3
	16	05	22	0	0	0	3	7	37	3	7	37	3
	17
	18
	19
	20
	21	00	48	1	13	23	3	9	39	4	22	62	4	AM(休日キュウジツ)
	22	03	22	1	2	12	3	7	37	4	9	49	1
	23	03	20	0	0	0	3	12	42	3	12	42	4
	24	00	18	1	1	11	4	8	48	5	9	59	3	AM
	25
	26	00	02	0	0	0	3	16	46	3	16	46	4	AM(休館日キュウカンビ)
	27	00	19	0	0	0	3	17	47	3	17	47	2	AM(休館日キュウカンビ)
	28	04	30	0	0	0	3	18	48	3	18	48	4
	29	00	37	0	0	0	3	9	39	3	9	39	3	AM
	30
		Total		3	16	46	30	114	414	33	130	460		R=k(10g+f)
		Mean				2.9			25.9			28.8		k=1
		obs day		16