Bahraini astronomer Ali Al-Hajri stated that the moon will gradually eclipse after entering the Earth’s penumbra and umbra regions, which have a diameter of 8165 km—about 2.35 times larger than the moon’s diameter—moving at a speed of 413.63 meters per second (24.82 km/h) over a period of 5 hours and 29 minutes on the evening of Sunday, September 7, 2025.

Al-Hajri detailed the eclipse phases: the moon enters the Earth’s penumbral cone at 6:27 PM, then enters the Earth’s umbral cone at 7:26 PM, marking the start of the visible eclipse. The umbra has a diameter of 4751 km and is a very dark shadow. The moon becomes fully eclipsed at 8:30 PM, reaching its peak at 9:11 PM. It then begins to exit the umbra partially at 9:53 PM and completely by 10:56 PM, with the eclipse ending at 11:56 PM.

Al-Hajri began with astronomical calculations he conducted specifically for the horizon of the Kingdom of Bahrain for the 21st century (2000-2100 AD), noting that there will be 226 lunar eclipses of all types globally, of which Bahrain will witness 154. Among these, there will be 63 total lunar eclipses: 21 where the beginning is visible before moonset, 26 fully visible total eclipses, and 16 where the end is visible after moonrise. Bahrain will also witness 40 partial lunar eclipses: 13 where the beginning is visible before moonset, 18 fully visible partial eclipses, and 9 where the end is visible after moonrise. Lastly, there will be 51 penumbral eclipses: 12 where the beginning is visible before moonset, 29 fully visible, and 10 where the end is visible after moonrise.

Al-Hajri concluded that the lunar eclipse prayer, which is a confirmed Sunnah or the prayer of the signs, is prescribed for the two noble sects during a total or partial lunar eclipse visible to the naked eye—when the moon’s disk partially or fully disappears after entering and exiting the Earth’s umbral cone, which is very dark. He specified the prayer time astronomically to last for three and a half hours, from 7:26 PM to 10:56 PM, covering the phases of the lunar eclipse from partial to total and back to partial, with the peak at 9:11 PM.