La visibilité du croissant lunaire de Shawwal 1441 de l'Hégire

Lunar crescent visibility of  Shawwal 1441 Hijri

The Conjonction :

The geocentric conjunction between the Moon and the sun will be at the end of the lunar month on Friday, May 22 at 18:39 local time.

Moon’s position after sunset on Friday, May 22, 2020.

In Tunisia: The Moon set before sunset.

In Islamic cities: The Moon set before sunset..

Possibility of Moon crescent visibility.

The visibility of Shawwal crescent, will be possible after the sunset on Sunday, May 22, 2020 in the world, from 11:06 local time. The crescent will be visible for the first time, from the western Pacific, then successively to the West, as shown on the map below (Fig. 2).

Table 1: Astronomical data relating to the observation of the lunar crescent of Shawwal 1441 Hijri, after sunset on Friday, May 22, 2020-29 Ramadan 1441 Hijri:

City

Time Zones

Sunset

Lag

Moon position at. Sunset

Moon Age

HL

DAZ

ARCL

W

HH

HH

Mn

HH

Mn

HH

Mn

deg°

deg°

deg°

%

Tunis

1.0

18

7

0

-8

1

35

******

-4.36

4.38

0.15

Nouakchott

0.

19

6

0

3

3

34

0.13

-4.28

4.66

0.17

Casablanca

0.

18

21

0

-4

2

49

******

-4.53

4.54

0.16

Alger

1.

18

36

0

-7

2

3

******

-4.43

4.43

0.15

Tripoli

1.

17

60

0

-7

1

27

******

-4.37

4.37

0.15

Caire

2.

17

50

0

-8

0

17

******

-4.26

4.29

0.14

Beyrouth

2.

17

28

0

-11

***

***

******

-4.18

4.28

0.14

Khartoum

2.

17

58

0

-2

0

25

******

-4.26

4.29

0.14

La Mecque

3.

18

22

0

-5

***

***

******

-4.29

4.28

0.14

La Medina

3.

18

20

0

-7

***

***

******

-4.27

4.28

0.14

Sanaa

3.

18

9

0

-3

***

***

******

-4.28

4.28

0.14

Oman

2.

17

29

0

-10

***

***

******

-4.21

4.28

0.14

Bagdad

3.

17

54

0

-12

***

***

******

-4.11

4.28

0.14

Koweït

3.

17

43

0

-10

***

***

******

-4.17

4.28

0.14

Teheran

3.5

17

54

0

-14

***

***

******

-3.99

4.29

0.14

Istanbul

3.

18

48

0

-14

0

15

******

-4.07

4.29

0.14

Jakarta

8.

19

12

0

-4

***

***

******

-4.63

4.62

0.16

Mexico

-7.0

17

54

0

4

7

21

0.10

-5.28

5.58

0.24

Washington

-5.0

17

32

0

0

6

59

******

-5.38

5.48

0.23

Montreal

-5.0

19

25

0

22

7

53

3.99

0.46

5.74

0.25

Moon position in Tunis, at sunset on Saturday 28 September -29 Ramadan 1441 Hijri

Figure 1: Moon position in Tunis, at sunset on Friday 22 May -29 Ramadan 1441 Hijri

Lunar crescent  visibility areas of Safar  1441 Hijri (according to Istanbul criteria) after sunset on Saturday, September 28, 2019

Figure 2: Lunar crescent visibility areas of Shawwal (according to Istanbul criteria) after sunset on Friday, May 23, 2020.

Abbreviation: 

lag: La période entre le coucher du soleil et le coucher de la lune. (si la valeur est négative dans ce cas la lune se couche avant le soleil).

Age Lune: The period between the conjunction and the sunset.

HL: Moon topocentric elevation (if the moon sets before the sun, the value will compensated by the symbol "*** ***").

DAZ: The difference between the sun’s azimuth and the moon’s azimuth, at sunset.

ARCL: Geocentric elongation between the sun and the moon.

W: The illuminated percentage of the moon's surface.

Indication : The criteria used to predict the visibility of the lunar crescent, are the Istanbul criteria (1978-2016).

The crescent Moon is visible after sunset, if the following conditions (criteria) are true.

  • The geocentric conjunction occurs before sunset.
  • HL> 5 ° at sunset.
  • ARCL> 8 °, at sunset.