The head of the Astronomical Society in Jeddah, Eng. Majed Abu Zahra, stated that he is observing the sky of Saudi Arabia and the Arab world before midnight today, Saturday, September 25, 2021, and for the rest of the night the waning humpback moon near the cluster of Pleiades stars on the dome of the sky, which is the first conjunction between them in the fall season this year.
The humpback moon and the chandelier will decorate the eastern horizon, where the cluster will be to the upper left of the moon – for the observer – but the chandelier will not be easily seen with the naked eye from inside the cities because of the light pollution that obscures the natural lights in the sky in addition to the presence of the moon, but the chandelier can be seen easily through binoculars or at Take pictures.
The Pleiades cluster, which is also known as the Seven Sisters because of the brightest seven stars, is similar to the stars of the Little Bear, except that it is foggy in appearance. For us in the northern hemisphere, the Pleiades cluster decorates the nights of winter.
On the other hand, the red star Aldebaran will be observed at the bottom of the moon after its rise and distance from the horizon, and the observer will not have any problem in seeing this star Aldebaran. Zodiac circle.
The stars of the Pleiades cluster are bound together by gravitational exchange between them and thrust together through space. Many Pleiades stars shine hundreds of times brighter than the Sun. According to recent measurements, the Pleiades were born from the same cloud of gas and dust about 100 million years ago, compared to 4 and a half billion years ago. .
Although the moon, Aldebaran and the Pleiades move towards the west across the sky, this is a result of the Earth’s rotation on its axis, but the real movement of the moon is towards the east.