Adnan Ökten · Istanbul University Observatory Solar Observations

Adnan Ökten Observer record

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AÖ0

Staff

706

Observation days

23

Years with observations

30.7

Mean days / year

130

Best year (1979)

26.07.1978
03.10.2026

First / last observation

1978 17 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
Aug																																7
Sep																																1
Dec																																7

1979 130 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																																9
Feb																																10
Mar																																12
Apr																																10
May																																11
Jun																																14
Jul																																12
Aug																																13
Sep																																10
Oct																																10
Nov																																10
Dec																																9

1980 100 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																																7
Mar																																11
Apr																																10
May																																9
Jun																																12
Jul																																11
Aug																																11
Sep																																6
Oct																																1
Nov																																12
Dec																																6

1981 58 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																																5
Mar																																1
Jun																																1
Jul																																13
Aug																																14
Sep																																4
Oct																																9
Nov																																7
Dec																																4

1982 99 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																																6
Mar																																10
Apr																																8
May																																7
Jun																																12
Jul																																14
Aug																																22
Sep																																3
Oct																																1
Nov																																1
Dec																																10

1983 84 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																																8
Mar																																9
Apr																																8
May																																11
Jun																																11
Jul																																8
Aug																																8
Sep																																5
Oct																																3
Nov																																1
Dec																																4

1984 44 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
Feb																																2
Mar																																3
Apr																																4
May																																6
Jun																																4
Jul																																5
Sep																																5
Oct																																5
Nov																																4
Dec																																5

1985 63 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																																6
Apr																																6
May																																4
Jun																																7
Jul																																8
Aug																																10
Sep																																6
Oct																																3
Nov																																3
Dec																																2

1986 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																																2
Mar																																2
Apr																																5
May																																6
Jun																																9
Jul																																3
Nov																																5
Dec																																2

1987 21 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																																6
Mar																																2
Apr																																4
May																																4
Dec																																3

1988 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																																3
Feb																																2
Mar																																7
Apr																																5
May																																4
Jun																																3
Aug																																1

1991 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
Aug																																1

1993 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
Aug																																1

1994 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
Jan																																1
Apr																																1

1995 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
Mar																																1

1996 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
May																																1
Jul																																1

1997 5 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
Nov																																2

1998 6 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																																1
Jun																																1
Aug																																1
Sep																																3

2000 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
Sep																																1

2001 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
Jul																																1

2002 3 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																																3

2013 3 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
May																																2
Sep																																1

2026 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
Oct																																1