Lunar crescent visibility of Jumada al-Thani 1441 Hijri
The Conjonction :
The geocentric conjunction between the Moon and the sun will be at the end of the lunar month on Saturday, January 24 at 22:42 local time.
Moon’s position after sunset on Friday, January 24, 2020.
In Tunisia: The Moon set before sunset.
In Islamic cities: The Moon set before sunset..
Possibility of Moon crescent visibility.
The visibility of Jumada al-Thani crescent, will be possible after the sunset on Saturday, January 25, 2019 in the world, from 14:23 local time. The crescent will be visible for the first time, from West Asia and the central Indian Ocean, 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 Jumada al-Thani 1441 Hijri, after sunset on Friday, January 24, 2019 - 29 Jumada al-awwal 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 | 13 | *** | *** | 2.5 | -3.82 | 5 | 0.2 |
| Dakar | 0. | 19 | 1 | 0 | 8 | 0 | 35 | 1.4 | -1.32 | 4.98 | 0.2 |
| Nouakchott | 0. | 18 | 55 | 0 | 9 | 0 | 28 | 1.6 | -1.89 | 4.96 | 0.2 |
| Casablanca | 0. | 18 | 19 | 0 | 13 | *** | *** | 2.3 | -3.95 | 4.96 | 0.2 |
| Alger | 1. | 18 | 37 | 0 | 14 | *** | *** | 2.2 | -4.06 | 4.97 | 0.2 |
| Tripoli | 1. | 17 | 57 | 0 | 11 | *** | *** | 1.8 | -3.22 | 5.2 | 0.2 |
| Caire | 2. | 17 | 45 | 0 | 8 | *** | *** | 1.2 | -2.30 | 5.19 | 0.2 |
| Beyrouth | 2. | 17 | 27 | 0 | 9 | *** | *** | 1.3 | -2.64 | 5.24 | 0.2 |
| Khartoum | 2. | 17 | 44 | 0 | 2 | *** | *** | 0 | -0.34 | 5.29 | 0.2 |
| La Mecque | 3. | 18 | 11 | 0 | 3 | *** | *** | 0.2 | -0.94 | 5.29 | 0.2 |
| La Medina | 3. | 18 | 56 | 0 | 5 | *** | *** | 0.5 | -1.34 | 5.35 | 0.2 |
| Sanaa | 3. | 17 | 25 | 0 | 0 | *** | *** | 0.4 | -0.03 | 5.24 | 0.2 |
| Oman | 2. | 17 | 52 | 0 | 8 | *** | *** | 1.2 | -2.40 | 5.37 | 0.2 |
| Bagdad | 3. | 17 | 38 | 0 | 8 | *** | *** | 1.1 | -2.29 | 4.42 | 0.2 |
| Koweït | 3. | 17 | 53 | 0 | 6 | *** | *** | 0.7 | -1.71 | 4.99 | 0.2 |
| Teheran | 3.5 | 17 | 52 | 0 | 8 | *** | *** | 1.1 | -2.34 | 5.2 | 0.3 |
| Istanbul | 3. | 18 | 47 | 0 | 16 | *** | *** | 1.9 | -3.69 | 5 | 0.3 |
| Jakarta | 8. | 18 | 27 | 0 | ## | *** | *** | **** | 3.41 | 6.67 | 0.2 |
| Mexico | -7.0 | 17 | 57 | 0 | 16 | 6 | 1 | 4.2 | -4.22 | 6.13 | 0.2 |
| Washington | -5.0 | 17 | 42 | 0 | 22 | 4 | 30 | 3.8 | -7.02 | 5.6 | 0.2 |
| Montreal | -5.0 | 7 | 42 | 0 | 24 | 4 | 15 | 3.7 | -7.82 | 5.33 | 0.2 |
Figure 1: Moon position in Tunis, at sunset on Friday 24 January -29 Jumada al-awwal 1441 Hijri
Figure 2: Lunar crescent visibility areas of Jumada al-Thani (according to Istanbul criteria) after sunset on Friday, January 24, 2019.
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.
