Date de début du mois de Ramadan au Sénégal : Les conclusions précises de l’Aspa
Muslims in Senegal are preparing to scan the sky to determine the first day of Ramadan. On what day will the crescent moon be visible? The Senegalese Association for the Promotion of Astronomy (ASPA) has, as usual, released the results of its research on the matter.
It indicates that the conjunction, which corresponds to the precise moment when the moon is between the Sun and the Earth, will take place on Tuesday, February 17, 2026, at 12:01 UTC. This moment marks the end of one lunar orbit around the Earth and the beginning of a new one.
The moon out of reach on Tuesday
Thus, on Tuesday, February 17th, the moon, which will be 7 hours and 26 minutes old, will set at 7:27 PM, 12 minutes after the Sun. The Sun will set at 7:15 PM, with less than 1% of its surface illuminated, an altitude of 1.9° and an elongation of 3.7°, "thus preventing any possibility of observing the crescent with the naked eye or with optical means in Senegal."
Therefore, next Tuesday, the moon will not be visible in Senegal, according to ASPA. This is due to its age, insufficient light, and the very low altitude, among other factors.
The observable celestial body on Wednesday
However, on Wednesday, February 18, the moon will be 1 day, 8 hours, and 20 minutes old. It will set at 8:20 PM, 1 hour and 5 minutes after the sun, which sets at 7:15 PM. "The moon will be visible to the naked eye wherever the sky is clear across Senegal, despite still being a very thin crescent. Its illuminated surface will be 1.9%, its altitude will be 12°, and its elongation will be approximately 10°," reports ASPA.
Therefore, based on the findings of ASPA, the blessed month of Ramadan should begin on Thursday, February 19th in Senegal. ASPA clarifies that the data is valid for Dakar, but the conclusions apply to the entire country, given Dakar's geographical location where the sun sets last.
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