Tansel Ak · Istanbul University Observatory Solar Observations

Tansel Ak Observer record

← All observers

TA

Staff

411

Observation days

15

Years with observations

27.4

Mean days / year

58

Best year (1994)

01.09.1990
24.08.2004

First / last observation

1990 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
Sep																																6
Oct																																5
Nov																																4
Dec																																2

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																																3
Feb																																2
Mar																																3
Apr																																2
May																																4
Jun																																6
Jul																																1
Aug																																11
Sep																																5
Oct																																1
Dec																																1

1992 41 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																																3
Mar																																4
Apr																																4
May																																4
Jun																																6
Jul																																6
Aug																																2
Sep																																3
Oct																																3
Nov																																2
Dec																																4

1993 43 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																																5
Apr																																5
May																																3
Jun																																4
Jul																																6
Aug																																3
Sep																																8
Oct																																4
Nov																																1

1994 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																																4
Mar																																4
Apr																																3
May																																7
Jun																																4
Jul																																3
Aug																																6
Sep																																6
Oct																																4
Nov																																8
Dec																																9

1995 43 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																																3
Mar																																5
Apr																																2
May																																9
Jun																																5
Jul																																7
Aug																																2
Sep																																4
Oct																																3
Dec																																2

1996 16 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
May																																1
Jun																																2
Jul																																1
Aug																																4
Sep																																5
Oct																																1

1997 22 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																																1
Apr																																1
May																																1
Jun																																1
Jul																																3
Aug																																7
Sep																																1
Nov																																2

1998 31 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																																4
May																																1
Jun																																2
Jul																																5
Aug																																1
Sep																																3
Oct																																3
Nov																																1
Dec																																2

1999 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																																2
Feb																																1
Mar																																4
Apr																																4
May																																5
Jun																																3
Jul																																2
Sep																																4
Oct																																3
Nov																																3
Dec																																2

2000 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																																1
Feb																																3
Mar																																1
Apr																																4
May																																3
Jun																																3
Sep																																3
Oct																																2
Nov																																2
Dec																																1

2001 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
Jan																																3
Feb																																2
Mar																																1
Apr																																3
May																																1
Jun																																1
Jul																																1
Sep																																2
Oct																																1
Nov																																1
Dec																																1

2002 18 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																																2
May																																2
Jul																																4
Aug																																2
Sep																																1
Oct																																5
Nov																																2

2003 9 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
Mar																																1
Apr																																1
May																																1
Jun																																2
Jul																																2
Aug																																1

2004 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