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Not to be repeated 12 years ago … the date of a rare conjunction of Venus and Mercury


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The closest visible conjunction between Venus and Mercury is observed in the sky of the Arab world on Friday evening.

The two planets in this conjunction are only 0.4 degrees apart, a phenomenon that will not be repeated at such a distance for 12 years.

The Astronomical Society in Jeddah revealed that the conjunction of Mercury and Venus occurs because they will share roughly the same line of sight, but they are not close to each other in space.

On the day of conjunction, Mercury will be 94,246,659 kilometers away from Earth, while Venus will be 243,844,529 kilometers away.

The conjunction will be observed after sunset and moving towards the beginning of the night towards the western horizon, preferably from a location where the western horizon is fully exposed, where Venus will be the brightest planet, visible to the naked eye about 40 minutes (if not earlier) after sunset and will follow. Mercury.

Mercury and Venus will remain above the horizon for about an hour and a quarter after sunset and regions in more northern latitudes will have longer to see the two planets, but they will follow the sun below the horizon shortly after in southern latitudes.

Venus and Mercury can be seen with the naked eye, and you may need to use binoculars to view Mercury near Venus, the third brightest celestial body illuminating the sky, after the sun and moon, respectively.

According to the report of the Astronomical Society in Jeddah, it can be seen that Mercury is fainter now than it was at the beginning of the month in early May when the disk of Mercury was illuminated by more than 80% by sunlight, but at the end of the month the bright part will shrink to 10%, which makes Mercury About 40 times lighter now than it was at the start of this month.

Mercury appears through the telescope in a small crescent phase, diminishing at 12% brightness at present, while Venus will have its disk in a diminishing humpback phase and 95% illuminated by sunlight.

After the conjunction day, Venus will continue to rise away from the glow of the sunset and will remain in the evening sky for the rest of 2021, while Mercury descends towards the sun and will leave for the dawn sky on June 11, and it will become visible to the naked eye in late June early July of the year. Next.

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