Hasan Hüseyin Esenoğlu · Istanbul University Observatory Solar Observations

Hasan Hüseyin Esenoğlu Observer record

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HE

Staff

572

Observation days

22

Years with observations

26.0

Mean days / year

51

Best year (1990)

11.07.1988
15.01.2011

First / last observation

1988 33 days

	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	Σ
Jul																																8
Aug																																8
Sep																																6
Oct																																5
Nov																																3
Dec																																3

1989 33 days

	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	Σ
Jan																																4
Feb																																4
Mar																																4
Apr																																6
May																																1
Jun																																7
Jul																																3
Nov																																2
Dec																																2

1990 51 days

	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	Σ
Jan																																5
Feb																																3
Mar																																7
Apr																																6
May																																5
Jun																																5
Jul																																2
Aug																																4
Sep																																3
Oct																																5
Nov																																3
Dec																																3

1991 39 days

	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	Σ
Jan																																8
Feb																																1
Mar																																3
Apr																																2
May																																1
Jun																																4
Jul																																8
Aug																																4
Sep																																2
Oct																																2
Nov																																2
Dec																																2

1992 33 days

	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	Σ
Jan																																3
Feb																																2
Mar																																4
Apr																																2
May																																6
Jun																																2
Aug																																5
Sep																																3
Oct																																4
Nov																																1
Dec																																1

1993 37 days

	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	Σ
Jan																																3
Feb																																1
Mar																																1
Apr																																4
May																																5
Jun																																5
Jul																																3
Aug																																11
Sep																																2
Oct																																1
Dec																																1

1994 11 days

	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	Σ
Jan																																3
Feb																																1
Mar																																2
Apr																																4
May																																1

1995 23 days

	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	Σ
Jun																																3
Jul																																5
Aug																																2
Sep																																8
Oct																																3
Nov																																1
Dec																																1

1996 20 days

	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	Σ
Feb																																1
Mar																																2
May																																4
Jun																																2
Jul																																4
Aug																																2
Oct																																2
Nov																																3

1997 25 days

	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	Σ
Jan																																2
Feb																																2
Mar																																2
Apr																																1
May																																3
Jun																																1
Jul																																2
Sep																																8
Nov																																2
Dec																																2

1998 23 days

	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	Σ
Jan																																3
May																																3
Jun																																3
Jul																																3
Aug																																5
Sep																																3
Oct																																3

1999 30 days

	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	Σ
Jan																																3
Feb																																3
Mar																																2
Apr																																3
May																																3
Jun																																2
Jul																																4
Aug																																6
Sep																																1
Nov																																1
Dec																																2

2000 20 days

	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	Σ
Jan																																4
Feb																																2
Apr																																2
May																																2
Jun																																2
Jul																																3
Aug																																1
Sep																																2
Oct																																2

2001 4 days

	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	Σ
Sep																																2
Oct																																1
Nov																																1

2002 24 days

	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	Σ
Feb																																1
Mar																																1
Apr																																1
Jun																																2
Jul																																1
Aug																																7
Sep																																2
Oct																																4
Nov																																4
Dec																																1

2003 20 days

	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	Σ
Mar																																2
Apr																																1
May																																2
Jun																																3
Jul																																4
Aug																																1
Sep																																1
Oct																																3
Nov																																3

2004 37 days

	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	Σ
Jan																																3
Feb																																3
Mar																																3
Apr																																3
May																																3
Jun																																3
Jul																																4
Aug																																4
Sep																																4
Oct																																2
Nov																																5

2007 37 days

	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	Σ
Aug																																5
Sep																																11
Oct																																6
Nov																																5
Dec																																10

2008 45 days

	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	Σ
Jan																																10
Feb																																6
Mar																																9
Apr																																5
May																																6
Jun																																8
Jul																																1

2009 24 days

	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	Σ
Jul																																2
Sep																																9
Oct																																8
Nov																																5

2010 2 days

	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	Σ
Apr																																1
May																																1

2011 1 days

	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	Σ
Jan																																1