Friday .. the last quarter of the moon in the sky of the Arab world



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The moon lights up, before midnight, today, Friday October 09, 2020, followed by a moment Last square At 02:39 local Cairo time (0039 GMT), cutting off three quarters of its orbit around Earth during the month.

The moon is detected high in the dome of the sky in conjunction with the onset of sunrise on Saturday against a blue sky background, and it will remain visible until it sets at noon according to local time.

The moon is known to revolve around the earth once every four weeks, and the result is a cycle of conjunction phases, the crescent at the start of the month, the first quadrature, passing through the crescent hunchback, then the full moon. , then the waning bump, then the last quarter and the month-end crescent, and it comes back to the conjunction again every 29.5 days, This movement also means that the moon is moving rapidly across the sky, from a night to the following night, the moon crosses 13 degrees in the dome of the sky, causing the moon to rise and set about an hour late each day.

The last quadrature period is considered, half the moon and the other half appear dark, the perfect time to observe the topography of the moon’s surface with binoculars or a small telescope, as mountains, craters, etc. . 3D view, ideal for surveillance and photography.

According to the Jeddah Astronomical Society, in the coming days, the distance between the moon and the sun in the dome of the sky will decrease until the moon becomes crescent at the end of the month and observes shortly before sunrise. sun in preparation for its fall in conjunction with Rabi al-Awwal 1441.

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