Location

Lat. N

Long. E

Elev. (m)

Location

Method

D_o, True Dawn

D_o, End of Pseudo Dusk

Authors

Riyadh (Saudi Arabia)

25˚ 46'

74˚ 12.16'

540

Desert

N.E & Camera

14.6˚ ± 0.3˚

[10]

Bahria (Egypt)

28˚ 42.9'

29˚ 59.82'

150

Desert

P.E.

15.5˚

19.5˚

[11]

Bahria oasis, (Egypt)

28˚ 42.9'

29˚ 59.82'

150

Desert

P.E.

14˚ ± 0.5˚

19.5˚ ± 0.5˚

[12]

Kottamia (Egypt)

29˚ 55.9'

31˚ 49.5'

470

Desert

P.E.

14.5˚

19˚

[13]

Tanjung Aru (Malaysia)

5˚ 57́

116˚ 02'

4

Desert

SQM

18˚ ± 0.16˚

[14]

Matrouh (Egypt)

31˚ 0.2'

27˚ 51'

75

Sea-Desert

P.E.

15˚ ± 1˚

19˚ ± 1˚

[15]

Bahria (Egypt)

28˚ 42.9'

29˚ 59.82'

150

Desert

P.E.

≤15˚

≤18˚

[16]

Bahria (Egypt)

28˚ 42.9'

29˚ 59.82'

150

Desert

N.E.

14.7˚

[17]

Matrouh (Egypt)

31˚ 0.2'

27˚ 51'

75

Sea-Desert

N.E.

14.5˚

[17]

Kottamia (Egypt)

29˚ 55.9'

31˚ 49.5'

470

Desert

N.E.

14.66˚ ± 0.2˚

[17]

Aswan (Egypt)

23˚ 48.22'

32˚ 29.5'

210

Desert

N.E.

13.96˚

[17]

Tubruq (Libya)

32˚ 4.7'

23˚ 59'

40

Desert

N.E.

14.7˚

[18]

Sinai (Egypt)

31˚ 04'

32˚ 52'

10

Desert

N.E.

14.61˚

[19]

Assiut (Egypt)

27˚ 10'

31˚ 10'

52

Agricultural

N.E.

13.48˚

[19]

Hail (Saudi Arabia)

25˚ 46'

47˚ 12'

540

Desert

N. E.

14.66˚

[20]

Wadi El Natron (Egypt)

30˚ 30'

30˚ 09'

30

Desert

N.E.

14.57˚

[21]

Depok (Indonesia)

6˚ 27'S

106˚ 48'E

50 - 140

Sea-Desert

SQM

14˚ ± 0.6˚

[22]