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Next Wednesday, the skies of the Kingdom and the Arab world will witness the nearest giant full moon this year 2021 AD, coinciding with a total eclipse for the first time in two and a half years, but the eclipse is not seen in the Arab world as it occurs during the day.
The head of the Jeddah Astronomical Society, Engineer Majed Abu Zahira, said that the description of the giant moon is given to the moon, whether in the new moon or the full moon when the distance between the center of the moon and the center of the Earth is within 362,146 kilometers and the scientific designation is Badr al-Hadeed, which means that the moon reaches the closest point to the Earth.
He added that the giant moon will reach the moment of completion at 2:14 p.m. Saudi time, and that it will be at a distance of 357,461 kilometers, 9 hours and 24 minutes after arriving at perigee, and this timing will make its size. apparent larger by about 14% and its illumination about 30% higher than the youngest full moon (August) will be next December, and it is slightly closer to Earth by only about 157 kilometers than the full giant moon of April 26, 2021 AD. Engineer Abu Zahra pointed out that the giant full moon will shine after sunset from the southeast horizon and will be orange in color due to the components of the atmosphere around the Earth that will scatter the white light reflected from the moon and disperse the colors of the blue spectrum and the colors of the red spectrum will remain, useful that after its ascent and distance from the horizon it appears in color The usual silvery white.
He reported that the giant full moon is more “attractive” than the perigee full moon and at the same time gives people the false impression that the giant full moon will appear much larger, but in fact giant full moons do appear. no larger than normal full moons with the naked eye, although experienced observers can tell the difference. He explained that the giant full moon will have no effect on the globe except for the two tidal phenomena, which is a natural thing. Each month, on the day of the full moon, the earth, moon and sun are regulated, which causes variable tides, indicating that the high tide is exceptionally rising and on the same day exceptionally the lowest tides occur, and as the full moon will be close to perigee, the tide will appear in a phenomenon called perigee high tides. The head of the Jeddah Astronomical Society said: “Considering the limited impact of the giant full moon, it will not affect the internal energy balance of our planet, as the tides occur daily. , therefore an increase in geological activity or unusual weather conditions are not expected. . “
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